获取前台页面传值

function Request(strName) {
var strHref = window.document.location.href;
var intPos = strHref.indexOf("?");
var strRight = strHref.substr(intPos + 1);

var arrTmp = strRight.split("&");
for (var i = 0; i < arrTmp.length; i++) {
var arrTemp = arrTmp[i].split("=");

if (arrTemp[0].toUpperCase() == strName.toUpperCase()) return arrTemp[1];
}
return "";
}

如：http://www.text.com?id=aaa

则 var id = Request("id");

得id =aaa;