// JavaScript Document
function queryString(key){
	var page = new PageQuery(window.location.search);
	return unescape(page.getValue(key));	
}

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 0;
	}
	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; }
}