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/**
* $define дÀ๤¾ßº¯ÊýÖ®¶þ
* @param {Object} constructor
* @param {Object} prototype
*/
function $define(constructor,prototype) {
var c = constructor || function(){};
var p = prototype || {};
return function() {
for(var atr in p)
arguments.callee.prototype[atr] = p[atr];
c.apply(this,arguments);
}
}

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//¹¹Ô캯Êý
function Person(name) {
this.name = name;
}
//Ô­ÐͶÔÏó
var proto = {
getName : function(){return this.name},
setName : function(name){this.name = name;}
}
//¶¨ÒåÁ½¸öÀà
var Man = $define(Person,proto);
var Woman = $define(Person,proto);
console.log(Man == Woman);//false,ͬһ¸ö¹¹Ô캯Êý£¨Person£©¶¨Ò岻ͬµÄÀà


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function $id(s) {
    return document.getElementById(s);
}
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function IsFloat(s) {
    if (!/^[+\-]?\d+(.\d+)?$/.test(s))
        return false;
    else
        return ......

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ȡID:getElementById("STB_433").id
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var checkboxs=document.getElementsByTagName("input");
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{
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