javascript中实现QueryString的function

function GetQueryvalue(panStr)

{

/*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

CopyRight: 陕西掌信网络有限公司 Joysos.Com

Description: 在javascript内实现QueryString

panStr: valueName

CreatDate: 2004-02-28

AuthorName:: 武眉博，WuMeibo wumeibo@joysos.com

LastUpdate:

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/

var sorStr = document.location.search;

var vStr="";

if (sorStr==null || sorStr=="" || panStr==null || panStr=="") return vStr;

sorStr = sorStr.toLowerCase();

panStr += "=";

var itmp=sorStr.indexOf(panStr);

if (itmp<0){return vStr;}

sorStr = sorStr.substr(itmp + panStr.length);

itmp=sorStr.indexOf("&");

if (itmp<0)

{

return sorStr;

}

else

{

sorStr=sorStr.substr(0,itmp);

return sorStr;

}

}