function MM_reloadPage(init) {  //reloads the window if Nav4 resized
	  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
	    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
	  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
	}
	MM_reloadPage(true);
	
	function hide_Layers (layernames) {
		for (var i = 0; i < hide_Layers.arguments.length; i++)
			//IE
		if (document.getElementById) {
			document.getElementById(hide_Layers.arguments[i]).style.visibility = 'hidden';
		}
		//NN
		else if (document.layers && document.layers[hide_Layers.arguments[i]] != null) {
			document.layers[hide_Layers.arguments[i]].visibility = 'hidden';
		}
		//restl.
		else if (document.all) {
			document.all[hide_Layers.arguments[i]].style.visibility = 'hidden';
		}
		return false;
	}
	

function show_Layer(layername)
	{
		//IE
		if (document.getElementById) {
			document.getElementById(layername).style.visibility = 'visible';
		}
		//NN
		else if (document.layers && document.layers[layername] != null) {
			document.layers[layername].visibility = 'visible';
		}
		//restl.
		else if (document.all) {
			document.all[layername].style.visibility = 'visible';
		}
		return false;
	}