Get a variable from url parameter using Javascript

Question

I am trying to get a url value using javascript, so far I can only get pure numbers, not mixed numbers with letters or just letters. I can\'t find any working examples of a

Answer 1

I use this function, and it rocks. I don't remember from where I took it, but it's a good one:

function gup(name) {
    name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
    var regexS = "[\\?&]" + name + "=([^&#]*)";
    var regex = new RegExp(regexS);
    var results = regex.exec(window.location.href);
    if (results == null)
        return "";
    else
        return results[1];
} 

If you have a URL like http://www.exmaple.com/path?p1=lkjsd234&p2=klsjd987, you can use:

alert(gup('p1')); // shows 'lkjsd234';