return ret
};
Number.prototype.toColorPart =function(){return String("00"+this.toString(16)).slice(-2)};
Function.prototype.bind = function() {
var __method = this, args = $A(arguments), object = args.shift();
return function(){return __method.apply(object, args.concat($A(arguments)))}
}
Position={
cumulativeOffset: function(element) {
var valueT = 0, valueL = 0;
do {
valueT += element.offsetTop || 0;
valueL += element.offsetLeft || 0;
element = element.offsetParent;
} while (element);
return [valueL, valueT];
}
}
}
})()
/*
1.读取/设置 透明度,
2.如果只传了一个参数element,则返回 element的透明度 (0<value<1)
3.如果传了两个参数 element和value 则把element的透明度设置为value value范围 0-1
*/
function Opacity(element,value){
// by Go_Rush(阿舜) from http://ashun.cnblogs.com/
var ret;
if (value===undefined){ //读取
