var isDOM = (document.getElementById ? true : false);
	var isIE4 = ((document.all && !isDOM) ? true : false);
	var isNS4 = (document.layers ? true : false);
	var isNS = navigator.appName == "Netscape";

	function getRef(id) 
	{
		if (isDOM) return document.getElementById(id);
		if (isIE4) return document.all[id];
		if (isNS4) return document.layers[id];
	}

	function f_clientWidth() {
		return f_filterResults (
			window.innerWidth ? window.innerWidth : 0,
			document.documentElement ? document.documentElement.clientWidth : 0,
			document.body ? document.body.clientWidth : 0
		);
	}
	function f_clientHeight() {
		return f_filterResults (
			window.innerHeight ? window.innerHeight : 0,
			document.documentElement ? document.documentElement.clientHeight : 0,
			document.body ? document.body.clientHeight : 0
		);
	}
	function f_scrollLeft() {
		return f_filterResults (
			window.pageXOffset ? window.pageXOffset : 0,
			document.documentElement ? document.documentElement.scrollLeft : 0,
			document.body ? document.body.scrollLeft : 0
		);
	}
	function f_scrollTop() {
		return f_filterResults (
			window.pageYOffset ? window.pageYOffset : 0,
			document.documentElement ? document.documentElement.scrollTop : 0,
			document.body ? document.body.scrollTop : 0
		);
	}
	function f_filterResults(n_win, n_docel, n_body) {
		var n_result = n_win ? n_win : 0;
		if (n_docel && (!n_result || (n_result > n_docel)))
			n_result = n_docel;
		return n_body && (!n_result || (n_result > n_body)) ? n_body : n_result;
	}

	function floatRight(obj) 
	{
		var e = getRef(obj);
		var windowWidth = f_clientWidth();
		var divWidth = parseInt(e.style.width);
		e.style.left = (windowWidth - (divWidth + 50)) + "px";
	}
	function toggle(obj) 
	{
		var e = getRef(obj);
		if ( e.style.display != 'none' ) 
		{
			e.style.display = 'none';
			e.style.visibility = 'none';
		}
		else 
		{
			e.style.display = '';
			e.style.visibility = 'visible';
		}
	}