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function getOffset (ele) {
    var box = ele.getBoundingClientRect();
    return {
        top: box.top + (window.pageYOffset || document.documentElement.scrollTop) - (document.documentElement.clientTop || 0),
        left: box.left + (window.pageXOffset || document.documentElement.scrollLeft) - (document.documentElement.clientLeft || 0)
    };
};

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/**
	referrence:http://leeiio.me/text-overflow-ellipsis/
*/

.overflow {
	white-space: nowrap;
	overflow: hidden;
	
	text-overflow: ellipsis;
	-o-text-overflow: ellipsis;

xxjinwei

//Fuck ie6!!!!
//url length >= 2084 returns error code 0x7a

		(function(length) {
			var url = "http://zhushou.sogou.com/data/data.html?",
				len = url.length,
				str = new Array(length+1-len).join("u"),
				img = new Image();

			img.src = url+str;	 

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//ie8及以下浏览器
if (window.attachEvent && !window.addEventListener) {
    // "bad" IE
}

//ie7及以下浏览器
if (window.attachEvent && !document.querySelector) {
    // "bad" IE
}

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/**
    https://github.com/adobe-webplatform/Snap.svg/blob/master/src/svg.js#L214
 */

function clone(obj) {
    
    if (typeof obj == "function" || Object(obj) !== obj) {
        return obj;

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/*
  http://css-tricks.com/almanac/properties/b/border-radius/
*/

.round {
  /* Safari 3-4, iOS 1-3.2, Android 1.6- */
  -webkit-border-radius: 12px; 

  /* Firefox 1-3.6 */
  -moz-border-radius: 12px; 

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/*
	http://css-tricks.com/css-transparency-settings-for-all-broswers/
*/

.transparent {
  	zoom: 1;
	filter: alpha(opacity=50);
	opacity: 0.5;
}

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//https://code.google.com/p/jslibs/wiki/JavascriptTips#Insert_an_array_in_another_array

var a = [1,2,3,7,8,9]

var b = [4,5,6]
var insertIndex = 3;

a.splice.apply(a, Array.concat(insertIndex, 0, b));
Print(a); // prints: 1,2,3,4,5,6,7,8,9

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//copy 字符串
//这种每次加一个“0”的方式有些慢，可以参考underscore.string的优化

  function leftPad(numstr,length) {
    
    while(numstr.length < length) {
      numstr = "0"+numstr;
    }
    return numstr;
  }

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chop: function(str, step){
    if (str == null) return [];
      str = String(str);
      step = ~~step;
      return step > 0 ? str.match(new RegExp('.{1,' + step + '}', 'g')) : [str];
    }