var Request = new function() {
	// proporties
	this.key      = new Array();
	this.value    = new Array();
	this.getKey = function(index) {
		return this.key[index];
	}
	this.setKey = function(index,key) {
		this.key[index] = key;
	}
	this.getValue = function(index) {
		return this.value[index];
	}
	this.setValue = function(index,value) {
		this.value[index] = value;
	}
	this.getSize = function() {
		if (this.key.length!==this.value.length) {
			alert("Error in Request.js, function getSize(), differences found in the length\r\nlength of this.key.length="+this.key.length+"\r\nlength of this.value.length="+this.value.length);
		}
		return this.key.length;
	}
	this.getParameter = function(key) {
		var value = '';
		for (var i=0;i<this.getSize();i++) {
			if (key===this.getKey(i)) {
				// Found a match
				value = this.getValue(i);
			}
		}
		return value;
	}
	this.init = function() {
		var url      = '' + document.location.href;
		var query    = url.split('?');
		if (query[1]) { // Any query string?
			var pairs = query[1].split('&'); // Get all key/value pairs x=a&y=b&z=c ...
			for(var i=0;i<pairs.length;i++) {
				var keyValue = pairs[i].split('='); // Find key/value pair x=a
				if (keyValue[1]) {
					this.setKey  (i,keyValue[0]); // Create request elements
					this.setValue(i,keyValue[1]);
				} else {
					// value = '', So skip this
				}
			}
		} else {
			// No request parameters found
		}
	}
	this.init();
}