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//IE8 compatible cancel of event
ev.stopPropagation ? ev.stopPropagation() : ev.cancelBubble = true;
ev.preventDefault ? ev.preventDefault() : ev.returnValue = false;

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.transparent-background{
    /* IE8 transparent background fix -- #aaRRGGBB */
    -ms-filter: progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr='#a6000000', endColorstr='#a6000000');
    filter: progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr='#a6000000', endColorstr='#a6000000');
    background: rgba(0,0,0,.65);   
}

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function getStyle(className) {
    var parseRuleText = function(rule){
        var text = rule.split('{').pop().split('}').shift();
        var cssRules = {};
        
        var lines = text.split(';');
        
        forEach(lines, function(line){
            var rule = line.split(':');
            if (rule[0].trim()) cssRules[rule[0].trim()] = rule[1].trim();

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var forEach = function(obj, cb, context){
    // check for a native forEach function
    var native = [].forEach,
        hasProp = Object.prototype.hasOwnProperty;
    
    // if there is a native function, use it
    if (native && obj.forEach === native) {
        //don't bother if there is no function
        cb && obj.forEach(cb, context);
    }

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var isZero = function(val){ return Math.abs(val) < 1.0e-14; }

var isNegative = function(val){ return (val < 0) ? true : val === 0 && (1/val)===-Infinity; }

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//this code will check if there is any overlap between two elements
//it was made to be used to check if a portion of a scrollably div is visible inside its wrapper
function isInView(containerBB, elBB) {
    return (!(
        elBB.top >= containerBB.bottom ||
        elBB.left >= containerBB.right ||
        elBB.bottom <= containerBB.top ||
        elBB.right <= containerBB.left
    ));
}

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/**
 * support for `Element.getBoudingClientRect()` goes back to IE5, FF3, and Chrome 1
 * it's great for getting the placement of a DOM element
 * it is supposed to include `top`, `bottom`, `left`, and `right` in browser coordinates
 * newer browsers also return `width` and `height`
 * this code patches that, allowing all browsers access to the `widht` and `height`
 */
function standardizeBoundingBox(bb) {
    //IE8 does not have width and height in bounding boxes
    return {

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//a constructor
function Thing(a, b, c, d){
    //a private constructor
    function Thing(){ 
        //we don't care about d
        this.d = d;
    }
    
    //a is read-only
    Thing.prototype.getA = function(){ return a; };

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//simple sync function
function sync(/* funcsArray, done, seedDataArgs */) {
    var args = Array.prototype.slice.call(arguments, 0);
    //functions array to sync is first
	var funcs = args.shift();
	//done callback is second
    var done = args.shift();
	//all remaining arguments are the seed data
    
    var counter = funcs.length;

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/**
 * Pad a number, in string format, with leading zeros.
 * @param {number|string} num The number to pad
 * @param {number} [size] The target length
 * @returns {string} The padded number.
 */
function pad(num, size) {
    size = size || 2;
	var s = num + "";
    while (s.length < size) s = "0" + s;