Using JS To Pull Url Variables.

url example:

whatever.com/index.html?name=username&password=password&gender=male&age=18


function getE(){
var url_string = String(document.location);
var url_array1 = url_string.split('?');
if(url_array1[1]){
var e_array = url_array1[1].split('&');
for(i=0;i<=20;i++){
if(e_array[i]){
pullE(e_array[i]);
}
}
}
}
function pullE(val){
var useVal = val.split('=');
alert(useVal[0]+" == "+useVal[1]); //display purposes
}

this would alert in order:
name == username
password == password
gender == male
age == 18

where useVal[0] is the element name and useVal[1] is the value.