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var globalEval = function(text) {
    var s = doc.createElement('script');
    s.appendChild(doc.createTextNode(text))
    doc.querySelector('head').appendChild(s)
}

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function setCursor(input) {
    input.focus()
    if (window.netscape) {
        setTimeout(function() { //方法一 W3C，不过除firefox的浏览器可以直接用input.value = input.value搞定
            var n = input.value.length
            input.setSelectionRange(n, n);
            input.focus()
        }, 0)
        var n = input.value.length //方法二
        input.selectionStart = n

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function getTransitionEndEventName() {
    var obj = {
            TransitionEvent: "transitionend",
            WebKitTransitionEvent: "webkittransitionEnd",
            OTransitionEvent: "OTransitionEnd",
            otransitionEvent: "otransitionEnd",
            MSTransitionEvent: "MSTransitionEnd"
        }
        //  var ev = document.createEvent("TransitionEvent"); // FIXME: un-specified
        //  ev.initTransitionEvent("transitionend", true, true, "some-unknown-prop", -4.75);

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  //加法  
    Number.prototype.add = function(arg){  
        var r1,r2,m,n;  
        try{r1 = this.toString().split(".")[1].length}catch(e){r1=0}  
        try{r2 = arg.toString().split(".")[1].length}catch(e){r2=0}  
        m=Math.pow(10,Math.max(r1,r2));
        n=(r1>=r2)?r1:r2;
        return ((this*m+arg*m)/m).toFixed(n);
    }  
     

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  function loadFile (url, callback) {
    var head = document.getElementsByTagName("head")[0] || document.documentElement
    var baseElement = head.getElementsByTagName("base")[0]

    var IS_CSS_RE = /\.css(?:\?|$)/i
    var currentlyAddingScript
    var interactiveScript

    var isOldWebKit = +navigator.userAgent
        .replace(/.*AppleWebKit\/(\d+)\..*/, "$1") < 536

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var JSON;JSON||(JSON={}),function(){function f(a){return a<10?"0"+a:a}function quote(a){return escapable.lastIndex=0,escapable.test(a)?'"'+a.replace(escapable,function(a){var b=meta[a];return typeof b=="string"?b:"\\u"+("0000"+a.charCodeAt(0).toString(16)).slice(-4)})+'"':'"'+a+'"'}function str(a,b){var c,d,e,f,g=gap,h,i=b[a];i&&typeof i=="object"&&typeof i.toJSON=="function"&&(i=i.toJSON(a)),typeof rep=="function"&&(i=rep.call(b,a,i));switch(typeof i){case"string":return quote(i);case"number":return isFinite(i)?String(i):"null";case"boolean":case"null":return String(i);case"object":if(!i)return"null";gap+=indent,h=[];if(Object.prototype.toString.apply(i)==="[object Array]"){f=i.length;for(c=0;c<f;c+=1)h[c]=str(c,i)||"null";return e=h.length===0?"[]":gap?"[\n"+gap+h.join(",\n"+gap)+"\n"+g+"]":"["+h.join(",")+"]",gap=g,e}if(rep&&typeof rep=="object"){f=rep.length;for(c=0;c<f;c+=1)typeof rep[c]=="string"&&(d=rep[c],e=str(d,i),e&&h.push(quote(d)+(gap?": ":":")+e))}else for(d in i)Object.prototype.hasOwnProperty.

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$.fn.selectRange = function(start, end) {  
    return this.each(function() {  
        if (this.setSelectionRange) {  
            this.focus();  
            this.setSelectionRange(start, end);  
        } else if (this.createTextRange) {  
            var range = this.createTextRange();  
            range.collapse(true);  
            range.moveEnd('character', end);  
            range.moveStart('character', start);  

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var EVENT = (function(){

    var bind = function(b){
        var queue = this.__MSG_QS__;
        if(!queue[b]){
            queue[b] = [];
        }
        for(var a = 1, len = arguments.length, Y; a < len; a++) {
            queue[b].push(arguments[a])
        }

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//以一个对象的x和y属性的方式返回滚动条的偏移量
function(w){
  var w = w || window;
  if(w.pageXOffset != null) return {x: x.pageXOffset, y: w.pageYOffset};
  var d = w.document;
  if(document.compatMode == "CSS1Compat"){
    return {x:d.documentElement.scrollLeft,y:d.documentElement.scrollTop};
  }else{
    return {x:d.body.scrllLeft,y:d.body.scrollTop};
  }

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Object.prototype.Clone = function(){
  var objClone;
  if (this.constructor == Object){
    objClone = new this.constructor();
  }else{
    objClone = new this.constructor(this.valueOf());
  }
  for(var key in this){
    if ( objClone[key] != this[key] ){
      if ( typeof(this[key]) == ‘object’ ){