使用js分析url

function prints(str)
{

var matchPIC = new RegExp("((?:http|https|ftp|mms|rtsp)://(&(?=amp;)|[A-Za-z0-9/./=/?%_~@#:;/+/-])+(gif|jpg|png))", "ig");
var matchURL = new RegExp("((?:http|https|ftp|mms|rtsp)://(&(?=amp;)|[A-Za-z0-9/./=/?%_~@&#:;/+/-])+)","ig");
var str2 ="";
str2 =str.replace(" "," ")
   if(matchPIC.test(str)){                   
        document.write(str2.replace(matchPIC, "<img src=/"$1/" hint=/"$1/"></img>"));    
   }else{       
          document.write(str2.replace(matchURL, "<a target=/"_blank/" href=/"$1/">$1</a>"));
   }
}

function doDis()  
{  
    var paramArray = Array("cdbid", "email");

    // split the query string into param=val pieces

    var srch = location.search.substr(location.search.indexOf("?")+1);
    partOf = srch.split("&");

    // split param and value into individual pieces

    for (var i=0; i<partOf.length; i++)     
    {
       var tmp = partOf[i].split("=");

       paramArray[i] = tmp[i]; 
 //this should populate my array with the values, but i dont think its working
 }
}