/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
** (c) 2005 by M.E. Koch http://www.AdOptimize.de
**
** feel free to copy but let us know and we might link back!
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ 
	var w3c = 0;
	var ie = 0;
	var ns = 0;
	var la;
	var layerzindex = 50; 
	if(document.getElementById) {
		w3c = 1;
	} else if (document.all) {
		ie = 1;
	} else { 
		browserVersion = parseInt(navigator.appVersion); 
		if ((navigator.appName.indexOf('Netscape') != -1) && (browserVersion == 4)) {
			ns = 1; 
		}
	}
	function getlayer(lname,lstyle) {
	if(lstyle == 1) {
		if (w3c) if(document.getElementById(lname)) return (document.getElementById(lname).style); 
		else if (ie) if(document.all[lname]) return (document.all[lname].style); 
		else if (ns) if(document.layers[lname]) return (document.layers[lname]);
	} else {
		if (w3c) if(document.getElementById(lname)) return (document.getElementById(lname)); 
		else if (ie) if(document.all[lname]) return (document.all[lname]); 
		else if (ns) if(document.layers[lname]) return (document.layers[lname]);
	}
}

	function show(id) {
		if(la) la.visibility= 'hidden';
		if(la = getlayer(id,1)) {
			la.visibility= 'visible';
			la.backgroundColor= 'white';
			layerzindex++;
			la.zIndex= layerzindex;
		}
		if(intro= getlayer('show_intro',1)) {
			intro.visibilty = 'hidden';
			intro.display= 'none';
		}
	}

	function hide(id) {
		if(la = getlayer(id,1)) {
			la.visibility= 'hidden';
		}
		//if(intro= getlayer('show_intro',1)) {
	//		intro.visibilty = 'visible';
	//		intro.display= 'block';
	//	}
	}