UUID Generator

http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript

HTML

<a id="aff_link" href="">Aff Link</a>
<br/>
<br/>

<input id="generateUUID" type="button" value="Reload page to update UUID"/>

JavaScript

function generateUUID() {
    
    var aff_url = "http://xxxxx.com/aff_c?offer_id=cccxx&aff_id=xxxx&source={var1}&aff_sub={clickid}&aff_sub1={campaign.id}&creative_name={var2}&creative_size={var3}&google_aid=";
    
    var d = new Date().getTime();
    if(window.performance && typeof window.performance.now === "function"){
        d += performance.now();; //use high-precision timer if available
    }
    var uuid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
        var r = (d + Math.random()*16)%16 | 0;
        d = Math.floor(d/16);
        return (c=='x' ? r : (r&0x3|0x8)).toString(16);
    });
    return aff_url+uuid;
};

document.getElementById('generateUUID').onclick = function() {
    location.reload();
};

document.getElementById('aff_link').href = generateUUID();