JS request函数 用来获取url参数

function request(strParame) { 
var args = new Object( ); 
var query = location.search.substring(1); 

var pairs = query.split("&"); // Break at ampersand 
for(var i = 0; i < pairs.length; i++) { 
var pos = pairs[i].indexOf('='); 
if (pos == -1) continue; 
var argname = pairs[i].substring(0,pos); 
var value = pairs[i].substring(pos+1); 
value = decodeURIComponent(value); 
args[argname] = value; 
} 
return args[strParame]; 
} 

比如你要获取aaa.aspx?id=2 

使用方法为：var id= request('id');