javascript 浏览器判断 绑定事件 arguments 转换数组 数组遍历

var $d = document; function $i(s){return $d.getElementById(s);} 
var _jsc={} 
_jsc.client=(function(){ 
var t={}; 
var b=navigator.userAgent.toLowerCase(); 
t.isOpera=(b.indexOf('opera')>-1) 
t.isIE=(b.indexOf('msie')>-1) 
t.isFF=(!t.isOpera&&!t.isIE&&b.indexOf("firefox")>-1); 
return t; 
})() 
_jsc.util=(function(){ 
var t={} 
t.addEvent=function(o,e,f){ 
if(_jsc.client.isIE){ 
o.attachEvent("on"+e,f) 
}else{ 
o.addEventListener(e,f,fasle); 
} 
return true 
} 
return t; 
})(); 
//window.onload=function(){_jsc.util.addEvent(document,"click",showMsg("z","d"))} 
_jsc.util.addEvent(document,"click",function(){showMsg("a","b")}) 
function showMsg() 
{ 
//alert(typeof arguments) 
//var dd=[arguments[0],arguments[1]] 
//var o = {a:'aa', b:'bb', c:'cc'}; 
//var o = {}; 
o=arguments 
o=Array.prototype.slice.call(arguments,0); 
for(var p in o) 
{ 
alert(o[p]); 
} 
循环对象的所有属性: 
<script> 
var o = {a:'aa', b:'bb', c:'cc'}; 
for(var p in o) 
{ 
alert(eval("o." + p)); 
} 
</script> 
循环数组的所有元素: 
<script> 
var arr = ['11', '22', '33']; 
for(var i in arr) 
{ 
alert(arr[i]); 
} 
</script>