js获得url中的参数信息

http://www.blogjava.net/bainian/articles/185657.html
/**//*
获取URL中最后一项参数的值
*/

var?str=window.location.href;
//alert(str);
var?es=/SouceID=/;?
es.exec(str);?
var?right=RegExp.rightContext;?
//alert(right);
???
? //列子
????<script language="javascript">?
????var str=window.location.href;?
????var es=/SouceID=/;?
????es.exec(str);?
????var right=RegExp.rightContext;?
????//alert(right);
????switch(right){
????case 'Din':
????case 'Exh':
????case 'Banks':
????case 'Shop':
????case 'Treat':
????case 'Trip':
?????????ChgTab('tab3','tabcontent3');
?????????break;
????case 'Air':
????case 'Railway':
????case 'Road':
????case 'Subway':
??????????ChgTab('tab2','tabcontent2');
??????????break;
???default:
?????????ChgTab('tab1','tabcontent1');
}
</script>


//以下是函数的写法
function?GetParam(){
????var?url?=?document.location.href;
????var?name=""
????if?(url.indexOf("=")>0)
????{
????????name?=?url.substring(url.indexOf("=")+1,url.length)
????}
????return?name;
}


/**//*
获取指定的URL参数值
URL:http://www.blogjava.net/blog?name=bainian
参数：paramName?URL参数
调用方法:getParam("name")
返回值:bainian
*/
//1.
function?getParam(paramName)
{
????????paramValue?=?"";
????????isFound?=?false;
????????if?(this.location.search.indexOf("?")?==?0?&&?this.location.search.indexOf("=")>1)
????????{
????????????arrSource?=?unescape(this.location.search).substring(1,this.location.search.length).split("&");
????????????i?=?0;
????????????while?(i?<?arrSource.length?&&?!isFound)
????????????{
????????????????if?(arrSource[i].indexOf("=")?>?0)
????????????????{
?????????????????????if?(arrSource[i].split("=")[0].toLowerCase()==paramName.toLowerCase())
?????????????????????{
????????????????????????paramValue?=?arrSource[i].split("=")[1];
????????????????????????isFound?=?true;
?????????????????????}
????????????????}
????????????????i++;
????????????}???
????????}
???return?paramValue;
}


//2.
function?Request(sName)
{

??/**//*
???get?last?loc.?of??
???right:?find?first?loc.?of?sName
???+2
???retrieve?value?before?next?&
??
??*/
??
??var?sURL?=?new?String(window.location);
??var?sURL?=?document.location.href;
??var?iQMark=?sURL.lastIndexOf('?');
??var?iLensName=sName.length;
??
??//retrieve?loc.?of?sName
??var?iStart?=?sURL.indexOf('?'?+?sName?+'=')?//limitation?1
??if?(iStart==-1)
????????{//not?found?at?start
????????iStart?=?sURL.indexOf('&'?+?sName?+'=')//limitation?1
????????????????if?(iStart==-1)
???????????????????{//not?found?at?end
????????????????????return?0;?//not?found
???????????????????}???
????????}
????????
??iStart?=?iStart?+?+?iLensName?+?2;
??var?iTemp=?sURL.indexOf('&',iStart);?//next?pair?start
??if?(iTemp?==-1)
????????????????{//EOF
????????????????iTemp=sURL.length;
????????????????}??
??return?sURL.slice(iStart,iTemp?)?;
??sURL=null;//destroy?String
}