//overlay setting tutorial http://www.netzgesta.de/busy/
//ctrl = getBusyOverlay(parent[, overlay[, busy]]);
var ctrl;

function block_view(text) {
    ctrl = getBusyOverlay('viewport',
                        { color: '#ffffff',
                            opacity: 0.10,
                            text: text + '...',
                            style: 'text-shadow: 0 0 3px black;font-weight:bold;font-size:16px;color:#0a44f2'
                        },
                        { color: '#f20a0a',
                            size: 50,
                            radius: 16,
                            weight: 12,
                            count: 15,
                            speed: 50,
                            min: 20,
                            type: 'c'
                        }
                       );
}

function end_view(text) {
    setTimeout(function () {
        ctrl.remove();
        ctrl = '';
    }, 200);

}

/**
* cvi_busy_lib.js 1.3 (14-Aug-2010) (c) by Christian Effenberger 
* All Rights Reserved. Source: busy.netzgesta.de
* Distributed under Netzgestade Software License Agreement.
* This license permits free of charge use on non-commercial 
* and private web sites only under special conditions. 
* Read more at... http://www.netzgesta.de/cvi/LICENSE.txt
* syntax:
 
Add:
OBJECT = getBusyOverlay(parent[,overlay[,busy]]);

parent		== element to add the overlay (e.g. document.getElementById(id) or 'viewport')

overlay 	== OBJECT e.g. {color: 'black', opacity: 0.5, ...}
color	== STR 'black' or '#000000' or 'rgb(0,0,0)' Default: 'white'
opacity	== FLOAT 0.0 - 1.0  Default: 0.0
text	== STR e.g. "loading" Default: ''
style	== STR e.g. "color: black;" or "my_text_class" Default: ''

busy		== OBJECT e.g. {color: '#fff', size: 48, ...}
color	== STR '#000000' - '#ffffff' or '#000' - '#fff' Default: '#000'
size	== INT 16 - 512 (pixel) Default: 32
type	== STR 'circle|oval|polygon|rectangle|tube' or 'c|o|p|r|t' Default: 'tube'
iradius	== INT 6 - 254 (pixel) Default: 8
weight	== INT 1 - 254 (pixel) Default: 3
count	== INT 5 - 36 (rays) Default: 12
speed	== INT 30 - 1000 (millisec) Default: 96
minopac	== FLOAT 0.0 - 0.5  Default: 0.25

Remove:
OBJECT.remove();
	
Set Overlay text:
OBJECT.settext(string);

*
**/

function onIEWinResize(event) {
    function parseWidth(val) { return (isNaN(parseInt(val, 10)) ? 0 : parseInt(val, 10)); }
    if (!event) { event = window.event; } var i, cs, parent = this, div = parent.getElementsByTagName("div");
    if (div.length > 0) {
        if (parent.currentStyle) { cs = parent.currentStyle; } else if (document.defaultView && document.defaultView.getComputedStyle) { cs = document.defaultView.getComputedStyle(parent, ""); } else { cs = parent.style; }
        for (i = 0; i < div.length; i++) {
            if (div[i].className == 'buzy_ele') {
                div[i].style.height = (parent.offsetHeight - parseWidth(cs.borderBottomWidth) - parseWidth(cs.borderTopWidth));
                div[i].style.width = (parent.offsetWidth - parseWidth(cs.borderLeftWidth) - parseWidth(cs.borderRightWidth));
                div[i].firstChild.style.height = div[i].style.height; div[i].firstChild.style.width = div[i].style.width;
                break;
            }
        }
    }
}
function onIEVPResize(event) {
    if (!event) { event = window.event; } var vp = document.getElementById('viewport'); if (vp) {
        if (typeof document.documentElement != 'undefined') { vp.style.width = document.documentElement.clientWidth + 'px'; vp.style.height = document.documentElement.clientHeight + 'px'; }
        else { vp.style.width = document.getElementsByTagName('body')[0].clientWidth + 'px'; vp.style.height = document.getElementsByTagName('body')[0].clientHeight + 'px'; }
    }
}
function onIEVPScroll(event) {
    if (!event) { event = window.event; } var vp = document.getElementById('viewport'); if (vp) {
        if (typeof document.documentElement != 'undefined') { vp.style.left = document.documentElement.scrollLeft + 'px'; vp.style.top = document.documentElement.scrollTop + 'px'; }
        else { vp.style.left = document.getElementsByTagName('body')[0].scrollLeft + 'px'; vp.style.top = document.getElementsByTagName('body')[0].scrollTop + 'px'; }
    }
}
function getBusyOverlay(parent, overlay, busy) {
    if ((typeof (parent) === 'object' || parent == 'viewport') && document.getElementsByTagName) {
        function parseWidth(val) { return (isNaN(parseInt(val, 10)) ? 0 : parseInt(val, 10)); }
        var isIE, isVL, isCV, isWK, isGE, i, b, o, lt, rt, lb, rb, cz, cs, size, viewport, inner, outer, string, canvas, context, ctrl, opacity, color, text, styles, waiting = true;
        if (parent == 'viewport') {
            viewport = document.getElementById('viewport');
            if (!viewport) {
                viewport = document.createElement('div'); viewport.id = 'viewport'; cz = viewport.style;
                cz.backgroundColor = 'transparent'; cz.position = 'fixed'; cz.overflow = 'hidden';
                cz.display = 'block'; cz.zIndex = 999999; cz.left = '0px'; cz.top = '0px'; cz.zoom = 1;
                cz.width = '100%'; cz.height = '100%'; cz.margin = '0px'; cz.padding = '0px';
                if (document.all && !window.opera && !window.XMLHttpRequest && (!document.documentMode || document.documentMode < 9)) {
                    cz.position = 'absolute';
                    if (typeof document.documentElement != 'undefined') { cz.width = document.documentElement.clientWidth + 'px'; cz.height = document.documentElement.clientHeight + 'px'; }
                    else { cz.width = document.getElementsByTagName('body')[0].clientWidth + 'px'; cz.height = document.getElementsByTagName('body')[0].clientHeight + 'px'; }
                } document.getElementsByTagName("body")[0].appendChild(viewport);
            } else {
                viewport.style.display = 'block';
                if (document.all && !window.opera && !window.XMLHttpRequest && (!document.documentMode || document.documentMode < 9)) {
                    if (typeof document.documentElement != 'undefined') { viewport.style.width = document.documentElement.clientWidth + 'px'; viewport.style.height = document.documentElement.clientHeight + 'px'; }
                    else { viewport.style.width = document.getElementsByTagName('body')[0].clientWidth + 'px'; viewport.style.height = document.getElementsByTagName('body')[0].clientHeight + 'px'; }
                }
            } parent = viewport;
        }
        if (parent.currentStyle) { cs = parent.currentStyle; } else if (document.defaultView && document.defaultView.getComputedStyle) { cs = document.defaultView.getComputedStyle(parent, ""); } else { cs = parent.style; }
        while (cs.display.search(/block|inline-block|table|inline-table|list-item/i) < 0) { parent = parent.parentNode; if (parent.currentStyle) { cs = parent.currentStyle; } else if (document.defaultView && document.defaultView.getComputedStyle) { cs = document.defaultView.getComputedStyle(parent, ""); } else { cs = parent.style; } if (parent.tagName.toUpperCase() == 'BODY') { parent = ""; } }
        if (typeof (parent) === 'object') {
            if (!overlay) { overlay = new Object(); overlay['opacity'] = 0; overlay['color'] = 'white'; overlay['text'] = ''; overlay['style'] = ''; }
            if (!busy) { busy = new Object(); busy['size'] = 32; busy['color'] = '#000'; busy['type'] = 'tube'; busy['iradius'] = 8; busy['weight'] = 3; busy['count'] = 12; busy['speed'] = 96; busy['minopac'] = .25; }
            opacity = Math.max(0.0, Math.min(1.0, (typeof overlay['opacity'] === 'number' ? overlay['opacity'] : 0) || 0)); color = (typeof overlay['color'] === 'string' ? overlay['color'] : 'white');
            text = (typeof overlay['text'] === 'string' ? overlay['text'] : ''); styles = (typeof overlay['style'] === 'string' ? overlay['style'] : '');
            canvas = document.createElement("canvas"); isCV = canvas.getContext ? 1 : 0;
            isWK = navigator.userAgent.indexOf('WebKit') > -1 ? 1 : 0; isGE = navigator.userAgent.indexOf('Gecko') > -1 && window.updateCommands ? 1 : 0;
            isIE = navigator.appName == 'Microsoft Internet Explorer' && window.navigator.systemLanguage && !window.opera && (!document.documentMode || document.documentMode < 9) ? 1 : 0;
            isVL = document.all && document.namespaces && (!document.documentMode || document.documentMode < 9) ? 1 : 0; outer = document.createElement('div'); parent.style.position = (cs.position == 'static' ? 'relative' : cs.position);
            cz = parent.style.zIndex >= 0 ? (parent.style.zIndex - 0 + 2) : 2; if (isIE && !cs.hasLayout) { parent.style.zoom = 1; }
            outer.style.position = 'absolute'; outer.style.overflow = 'hidden'; outer.style.display = 'block'; outer.style.zIndex = cz;
            outer.style.left = 0 + 'px'; outer.style.top = 0 + 'px'; outer.style.width = '100%'; outer.style.height = '100%';
            if (isIE) { outer.className = 'buzy_ele'; outer.style.zoom = 1; outer.style.margin = '0px'; outer.style.padding = '0px'; outer.style.height = (parent.offsetHeight - parseWidth(cs.borderBottomWidth) - parseWidth(cs.borderTopWidth)); outer.style.width = (parent.offsetWidth - parseWidth(cs.borderLeftWidth) - parseWidth(cs.borderRightWidth)); }
            if (typeof (cs.borderRadius) == "undefined") {
                if (typeof (cs.MozBorderRadius) != "undefined") {
                    lt = parseFloat(cs.MozBorderRadiusTopleft) - Math.min(parseFloat(cs.borderLeftWidth), parseFloat(cs.borderTopWidth));
                    rt = parseFloat(cs.MozBorderRadiusTopright) - Math.min(parseFloat(cs.borderRightWidth), parseFloat(cs.borderTopWidth));
                    lb = parseFloat(cs.MozBorderRadiusBottomleft) - Math.min(parseFloat(cs.borderLeftWidth), parseFloat(cs.borderBottomWidth));
                    rb = parseFloat(cs.MozBorderRadiusBottomright) - Math.min(parseFloat(cs.borderRightWidth), parseFloat(cs.borderBottomWidth));
                    outer.style.MozBorderRadiusTopleft = lt + "px"; outer.style.MozBorderRadiusTopright = rt + "px"; outer.style.MozBorderRadiusBottomleft = lb + "px"; outer.style.MozBorderRadiusBottomright = rb + "px";
                } else if (typeof (cs.WebkitBorderRadius) != "undefined") {
                    lt = parseFloat(cs.WebkitBorderTopLeftRadius) - Math.min(parseFloat(cs.borderLeftWidth), parseFloat(cs.borderTopWidth));
                    rt = parseFloat(cs.WebkitBorderTopRightRadius) - Math.min(parseFloat(cs.borderRightWidth), parseFloat(cs.borderTopWidth));
                    lb = parseFloat(cs.WebkitBorderBottomLeftRadius) - Math.min(parseFloat(cs.borderLeftWidth), parseFloat(cs.borderBottomWidth));
                    rb = parseFloat(cs.WebkitBorderBottomRightRadius) - Math.min(parseFloat(cs.borderRightWidth), parseFloat(cs.borderBottomWidth));
                    outer.style.WebkitBorderTopLeftRadius = lt + "px"; outer.style.WebkitBorderTopRightRadius = rt + "px"; outer.style.WebkitBorderBottomLeftRadius = lb + "px"; outer.style.WebkitBorderBottomRightRadius = rb + "px";
                }
            } else {
                lt = parseFloat(cs.borderTopLeftRadius) - Math.min(parseFloat(cs.borderLeftWidth), parseFloat(cs.borderTopWidth));
                rt = parseFloat(cs.borderTopRightRadius) - Math.min(parseFloat(cs.borderRightWidth), parseFloat(cs.borderTopWidth));
                lb = parseFloat(cs.borderBottomLeftRadius) - Math.min(parseFloat(cs.borderLeftWidth), parseFloat(cs.borderBottomWidth));
                rb = parseFloat(cs.borderBottomRightRadius) - Math.min(parseFloat(cs.borderRightWidth), parseFloat(cs.borderBottomWidth));
                outer.style.borderTopLeftRadius = lt + "px"; outer.style.borderTopRightRadius = rt + "px"; outer.style.borderBottomLeftRadius = lb + "px"; outer.style.borderBottomRightRadius = rb + "px";
            }
            parent.appendChild(outer); inner = document.createElement('div');
            inner.style.position = 'absolute'; inner.style.cursor = 'progress'; inner.style.display = 'block';
            inner.style.zIndex = (cz - 1); inner.style.left = 0 + 'px'; inner.style.top = 0 + 'px';
            inner.style.width = 100 + '%'; inner.style.height = 100 + '%'; inner.style.backgroundColor = color;
            if (isIE) { inner.style.zoom = 1; inner.style.margin = '0px'; inner.style.padding = '0px'; inner.style.height = outer.style.height; inner.style.width = outer.style.width; }
            if (typeof (cs.borderRadius) == "undefined") {
                if (typeof (cs.MozBorderRadius) != "undefined") { inner.style.MozBorderRadiusTopleft = lt + "px"; inner.style.MozBorderRadiusTopright = rt + "px"; inner.style.MozBorderRadiusBottomleft = lb + "px"; inner.style.MozBorderRadiusBottomright = rb + "px"; } else
                    if (typeof (cs.WebkitBorderRadius) != "undefined") { inner.style.WebkitBorderTopLeftRadius = lt + "px"; inner.style.WebkitBorderTopRightRadius = rt + "px"; inner.style.WebkitBorderBottomLeftRadius = lb + "px"; inner.style.WebkitBorderBottomRightRadius = rb + "px"; }
            } else { inner.style.borderTopLeftRadius = lt + "px"; inner.style.borderTopRightRadius = rt + "px"; inner.style.borderBottomLeftRadius = lb + "px"; inner.style.borderBottomRightRadius = rb + "px"; }
            if (isIE) { inner.style.filter = "progid:DXImageTransform.Microsoft.Alpha(opacity=" + parseInt(opacity * 100) + ")"; } else { inner.style.opacity = opacity; }
            outer.appendChild(inner); size = Math.max(16, Math.min(512, (typeof busy['size'] === 'number' ? (busy['size'] == 0 ? 32 : busy['size']) : 32)));
            if (isVL) {
                if (document.namespaces['v'] == null) {
                    var e = ["shape", "shapetype", "group", "background", "path", "formulas", "handles", "fill", "stroke", "shadow", "textbox", "textpath", "imagedata", "line", "polyline", "curve", "roundrect", "oval", "rect", "arc", "image"], s = document.createStyleSheet();
                    for (i = 0; i < e.length; i++) { s.addRule("v\\:" + e[i], "behavior: url(#default#VML);"); } document.namespaces.add("v", "urn:schemas-microsoft-com:vml");
                }
            }
            if (!isCV) { canvas = document.createElement("div"); }
            canvas.style.position = 'absolute'; canvas.style.cursor = 'progress'; canvas.style.zIndex = (cz - 0 + 1);
            canvas.style.top = '50%'; canvas.style.left = '50%'; canvas.style.marginTop = '-' + (size / 2) + 'px'; canvas.style.marginLeft = '-' + (size / 2) + 'px';
            canvas.width = size; canvas.height = size; canvas.style.width = size + "px"; canvas.style.height = size + "px";
            outer.appendChild(canvas);
            if (text != "") {
                string = document.createElement('div'); string.style.position = 'absolute'; string.style.overflow = 'hidden';
                string.style.cursor = 'progress'; string.style.zIndex = (cz - 0 + 1); string.style.top = '50%'; string.style.left = '0px';
                string.style.marginTop = 2 + (size / 2) + 'px'; string.style.textAlign = 'center'; string.style.width = 100 + '%'; string.style.height = 'auto';
                if (styles != "") { string.innerHTML = '<span ' + (styles.match(/:/i) ? 'style' : 'class') + '="' + styles + '">' + text + '</span>'; }
                else { string.innerHTML = '<span>' + text + '</span>'; } outer.appendChild(string);
            }
            if (isGE) { outer.style.MozUserSelect = "none"; inner.style.MozUserSelect = "none"; canvas.style.MozUserSelect = "none"; } else
                if (isWK) { outer.style.KhtmlUserSelect = "none"; inner.style.KhtmlUserSelect = "none"; canvas.style.KhtmlUserSelect = "none"; } else
                    if (isIE) { outer.unselectable = "on"; inner.unselectable = "on"; canvas.unselectable = "on"; }
            if (isVL) { ctrl = getBusyVL(canvas, busy['color'], busy['size'], busy['type'], busy['iradius'], busy['weight'], busy['count'], busy['speed'], busy['minopac']); ctrl.start(); } else
                if (isCV) { ctrl = getBusyCV(canvas.getContext("2d"), busy['color'], busy['size'], busy['type'], busy['iradius'], busy['weight'], busy['count'], busy['speed'], busy['minopac']); ctrl.start(); }
                else { ctrl = getBusy(canvas, busy['color'], busy['size'], busy['type'], busy['iradius'], busy['weight'], busy['count'], busy['speed'], busy['minopac']); ctrl.start(); }
            if (isIE) { parent.onresize = onIEWinResize; if (parent.id == 'viewport' && !window.XMLHttpRequest) { window.onresize = onIEVPResize; window.onscroll = onIEVPScroll; } }
            return {
                remove: function () { if (waiting) { waiting = false; ctrl.stop(); delete ctrl; parent.removeChild(outer); if (parent.id == 'viewport') { parent.style.display = 'none'; } } },
                settext: function (v) { if (string && typeof (v) == 'string') { string.firstChild.innerHTML = v; return false; } }
            };
        }
    }
}
function getBusy(obj, cl, sz, tp, ir, w, ct, sp, mo) {
    function getHEX(v) {
        var col = v || '#000000';
        if (!col.match(/^#[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]$/i)) {
            if (v.match(/^#[0-9a-f][0-9a-f][0-9a-f]$/i)) { col = '#' + v.substr(1, 1) + v.substr(1, 1) + v.substr(2, 1) + v.substr(2, 1) + v.substr(3, 1) + v.substr(3, 1); }
        } return col;
    }
    var running = false, i = 0, os = 0, al = 0, f = 100, c, h, p, t, x, y, v, hp, ph, sh, ele = new Array();
    c = getHEX(cl); tp = tp || "t"; t = (tp.match(/^[coprt]/i) ? tp.substr(0, 1).toLowerCase() : 't');
    ct = Math.max(5, Math.min(36, ct || 12)); sp = Math.max(30, Math.min(1000, sp || 96));
    sz = Math.max(16, Math.min(512, sz || 32)); ir = Math.max(1, Math.min((sz / 2) - 2, ir || sz / 4));
    w = Math.max(1, Math.min((sz / 2) - ir, w || sz / 10)); mo = Math.max(0, Math.min(0.5, mo || 0.25));
    al = 360 / ct; hp = (Math.PI / 2) * -1; ph = Math.PI / 180; w = (t != 'c' ? parseInt((w / 2) * 3) : w); v = parseInt((sz / 2) - (w / 2));
    for (i = 0; i < ct; i++) {
        sh = document.createElement('div'); x = Math.round(v + v * Math.cos(hp + (i + 1) * al * ph)); y = Math.round(v + v * Math.sin(hp + (i + 1) * al * ph));
        sh.style.position = 'absolute'; sh.style.margin = '0px'; sh.style.width = w + 'px'; sh.style.height = w + 'px';
        sh.style.lineHeight = '1px'; sh.style.fontSize = '0px'; sh.style.top = y + 'px'; sh.style.left = x + 'px'; sh.style.backgroundColor = c;
        if (document.all && !window.opera && (!document.documentMode || document.documentMode < 9)) { sh.style.filter = "progid:DXImageTransform.Microsoft.Alpha(opacity=" + parseInt(Math.min(1, Math.max(mo, 1 - ((ct + 1 - i) / (ct + 1)))) * 100) + ")"; } else { sh.style.opacity = Math.min(1, Math.max(mo, 1 - ((ct + 1 - i) / (ct + 1)))); }
        obj.appendChild(sh); ele[i] = sh;
    }
    function nextLoop() {
        if (!running) { return; } os = (os + 1) % ct;
        if (document.all && !window.opera && (!document.documentMode || document.documentMode < 9)) { for (i = 0; i < ct; i++) { al = ((os + i) % ct); ele[al].style.filter = "progid:DXImageTransform.Microsoft.Alpha(opacity=" + parseInt(Math.min(1, Math.max(mo, 1 - ((ct + 1 - i) / (ct + 1)))) * 100) + ")"; } }
        else { for (i = 0; i < ct; i++) { al = ((os + i) % ct); ele[al].style.opacity = Math.min(1, Math.max(mo, 1 - ((ct + 1 - i) / (ct + 1)))); } }
        setTimeout(nextLoop, sp);
    }
    nextLoop(0);
    return {
        start: function () { if (!running) { running = true; nextLoop(0); } },
        stop: function () { running = false; for (i = 0; i < ct; i++) { if (document.all && !window.opera && (!document.documentMode || document.documentMode < 9)) { ele[i].style.filter = "progid:DXImageTransform.Microsoft.Alpha(opacity=0)"; } else { ele[i].setAttribute('opacity', 0); } } },
        pause: function () { running = false; }
    };
}
function getBusyVL(obj, cl, sz, tp, ir, w, ct, sp, mo) {
    function getHEX(v) {
        var col = v || '#000000';
        if (!col.match(/^#[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]$/i)) {
            if (v.match(/^#[0-9a-f][0-9a-f][0-9a-f]$/i)) { col = '#' + v.substr(1, 1) + v.substr(1, 1) + v.substr(2, 1) + v.substr(2, 1) + v.substr(3, 1) + v.substr(3, 1); }
        } return col;
    }
    var running = false, os = 0, al = 0, f = 100, c, i, h, p, t, x, y, hs, qs, hw, qw, rp, sh, fl, ele = new Array();
    c = getHEX(cl); tp = tp || "t"; t = (tp.match(/^[coprt]/i) ? tp.substr(0, 1).toLowerCase() : 't');
    ct = Math.max(5, Math.min(36, ct || 12)); sp = Math.max(30, Math.min(1000, sp || 96));
    sz = Math.max(16, Math.min(512, sz || 32)); ir = Math.max(1, Math.min((sz / 2) - 2, ir || sz / 4));
    w = Math.max(1, Math.min((sz / 2) - ir, w || sz / 10)); mo = Math.max(0, Math.min(0.5, mo || 0.25));
    h = (sz / 2) - ir; x = sz / 2; y = x; al = 360 / ct; hs = parseInt((sz / 2) * f); qs = parseInt(hs / 2);
    hw = parseInt((w / 2) * f); qw = parseInt(hw / 2); rp = hs - parseInt(ir * f);
    switch (t) {
        case "c": p = 'm ' + hs + ',' + (rp - hw) + ' ar ' + (hs - hw) + ',' + (rp - hw - hw) + ',' + (hs + hw) + ',' + rp + ',' + (hs - hw) + ',' + (rp - hw - hw) + ',' + (hs - hw) + ',' + (rp - hw - hw) + ' e'; break;
        case "p": p = 'm ' + (hs - qw) + ',0 l ' + (hs - hw) + ',' + rp + ',' + (hs + hw) + ',' + rp + ',' + (hs + qw) + ',0 x e'; break;
        case "o": p = 'm ' + hs + ',' + (rp - qs) + ' ar ' + (hs - hw) + ',0,' + (hs + hw) + ',' + rp + ',' + (hs - hw) + ',0,' + (hs - hw) + ',0 e'; break;
        case "t": p = 'm ' + (hs - hw) + ',' + rp + ' l ' + (hs - hw) + ',' + hw + ' qy ' + hs + ',0 qx ' + (hs + hw) + ',' + hw + ' l ' + (hs + hw) + ',' + rp + ' x e'; break;
        default: p = 'm ' + (hs - hw) + ',0 l ' + (hs - hw) + ',' + rp + ',' + (hs + hw) + ',' + rp + ',' + (hs + hw) + ',0 x e'; break;
    }
    for (i = 0; i < ct; i++) {
        sh = document.createElement('v:shape'); sh.setAttribute('filled', 't'); sh.setAttribute('stroked', 'f');
        sh.setAttribute('coordorigin', '0,0'); sh.setAttribute('coordsize', (sz * f) + ',' + (sz * f));
        sh.setAttribute('path', p); sh.style.rotation = (i * al); sh.style.position = 'absolute'; sh.style.margin = '0px';
        sh.style.width = sz + 'px'; sh.style.height = sz + 'px'; sh.style.top = '-1px'; sh.style.left = '-1px';
        obj.appendChild(sh); fl = document.createElement('v:fill');
        fl.setAttribute('opacity', Math.min(1, Math.max(mo, 1 - ((ct + 1 - i) / (ct + 1)))));
        fl.setAttribute('color', c); sh.appendChild(fl); ele[i] = fl;
    }
    function nextLoop() {
        if (!running) { return; } os = (os + 1) % ct;
        if (document.documentMode == 8) {
            for (i = 0; i < ct; i++) { al = ((os + i) % ct); ele[al].opacity = Math.min(1, Math.max(mo, 1 - ((ct + 1 - i) / (ct + 1)))); }
        } else {
            for (i = 0; i < ct; i++) { al = ((os + i) % ct); ele[al].setAttribute('opacity', Math.min(1, Math.max(mo, 1 - ((ct + 1 - i) / (ct + 1))))); }
        }
        setTimeout(nextLoop, sp);
    }
    nextLoop(0);
    return {
        start: function () { if (!running) { running = true; nextLoop(0); } },
        stop: function () { running = false; for (i = 0; i < ct; i++) { ele[i].setAttribute('opacity', 0); } },
        pause: function () { running = false; }
    };
}
function getBusyCV(ctx, cl, sz, tp, ir, w, ct, sp, mo) {
    function getRGB(v) {
        function hex2dec(h) { return (Math.max(0, Math.min(parseInt(h, 16), 255))); }
        var r = 0, g = 0, b = 0; v = v || '#000'; if (v.match(/^#[0-9a-f][0-9a-f][0-9a-f]$/i)) {
            r = hex2dec(v.substr(1, 1) + v.substr(1, 1)), g = hex2dec(v.substr(2, 1) + v.substr(2, 1)), b = hex2dec(v.substr(3, 1) + v.substr(3, 1));
        } else if (v.match(/^#[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]$/i)) {
            r = hex2dec(v.substr(1, 2)), g = hex2dec(v.substr(3, 2)), b = hex2dec(v.substr(5, 2));
        } return r + ',' + g + ',' + b;
    }
    function drawOval(ctx, w, h) { ctx.beginPath(); ctx.moveTo(-w / 2, h / 2); ctx.quadraticCurveTo(-w / 2, 0, 0, 0); ctx.quadraticCurveTo(w / 2, 0, w / 2, h / 2); ctx.quadraticCurveTo(w / 2, h, 0, h); ctx.quadraticCurveTo(-w / 2, h, -w / 2, h / 2); ctx.fill(); }
    function drawTube(ctx, w, h) { ctx.beginPath(); ctx.moveTo(w / 2, 0); ctx.lineTo(-w / 2, 0); ctx.lineTo(-w / 2, h - (w / 2)); ctx.quadraticCurveTo(-w / 2, h, 0, h); ctx.quadraticCurveTo(w / 2, h, w / 2, h - (w / 2)); ctx.fill(); }
    function drawPoly(ctx, w, h) { ctx.beginPath(); ctx.moveTo(w / 2, 0); ctx.lineTo(-w / 2, 0); ctx.lineTo(-w / 4, h); ctx.lineTo(w / 4, h); ctx.fill(); }
    function drawCirc(ctx, r, z) { ctx.beginPath(); ctx.arc(r, r, r, 0, Math.PI * 2, false); ctx.fill(); }
    var running = false, os = 0, al = 0, c, i, h, t, x, y;
    c = getRGB(cl); tp = tp || "t"; t = (tp.match(/^[coprt]/i) ? tp.substr(0, 1).toLowerCase() : 't');
    ct = Math.max(5, Math.min(36, ct || 12)); sp = Math.max(30, Math.min(1000, sp || 96));
    sz = Math.max(16, Math.min(512, sz || 32)); ir = Math.max(1, Math.min((sz / 2) - 2, ir || sz / 4));
    w = Math.max(1, Math.min((sz / 2) - ir, w || sz / 10)); mo = Math.max(0, Math.min(0.5, mo || 0.25));
    h = (sz / 2) - ir; x = sz / 2; y = x;
    function nextLoop() {
        if (!running) { return; } os = (os + 1) % ct; ctx.clearRect(0, 0, sz, sz); ctx.save(); ctx.translate(x, y);
        for (i = 0; i < ct; i++) {
            al = 2 * ((os + i) % ct) * Math.PI / ct;
            ctx.save(); ctx.translate(ir * Math.sin(-al), ir * Math.cos(-al)); ctx.rotate(al);
            ctx.fillStyle = 'rgba(' + c + ',' + Math.min(1, Math.max(mo, 1 - ((ct + 1 - i) / (ct + 1)))) + ')';
            switch (t) { case "c": drawCirc(ctx, w / 2, h); break; case "o": drawOval(ctx, w, h); break; case "p": drawPoly(ctx, w, h); break; case "t": drawTube(ctx, w, h); break; default: ctx.fillRect(-w / 2, 0, w, h); break; } ctx.restore();
        } ctx.restore();
        setTimeout(nextLoop, sp);
    }
    nextLoop(0);
    return {
        start: function () { if (!running) { running = true; nextLoop(0); } },
        stop: function () { running = false; ctx.clearRect(0, 0, sz, sz); },
        pause: function () { running = false; }
    };
}