function SetCookie(cookieName,cookieValue,nDays) {
    var today = new Date();
    var expire = new Date();
    if (nDays==null || nDays==0) nDays=1;
    expire.setTime(today.getTime() + 3600000*24*nDays);
    document.cookie = cookieName+"="+escape(cookieValue)
	+ ";expires="+expire.toGMTString();
}

function PageQuery(q) {
    if(q.length > 1) this.q = q.substring(1, q.length);
    else this.q = null;
    this.keyValuePairs = new Array();
    if(q) {
	for(var i=0; i < this.q.split("&").length; i++) {
	    this.keyValuePairs[i] = this.q.split("&")[i];
	}
    }
    this.getKeyValuePairs = function() { return this.keyValuePairs; }
    this.getValue = function(s) {
	for(var j=0; j < this.keyValuePairs.length; j++) {
	    if(this.keyValuePairs[j].split("=")[0] == s)
	    return this.keyValuePairs[j].split("=")[1];
	}
	return false;
    }
    this.getParameters = function() {
	var a = new Array(this.getLength());
	for(var j=0; j < this.keyValuePairs.length; j++) {
	    a[j] = this.keyValuePairs[j].split("=")[0];
	}
	return a;
    }
    this.getLength = function() { return this.keyValuePairs.length; }
}

function SetAffiliateCookie(){
    var page = new PageQuery(window.location.search);
    var source = page.getValue("source");
    if (source){
    SetCookie("affiliate",source,30);
}
}

window.onload = SetAffiliateCookie;