function Showmenu() {
		Hidemenu();
		var i,TopPosition,args = Showmenu.arguments;
		for (i=0; i<(args.length); i+=1) {
			if (document.layers) { // NN 4.xx
				eval('var CurrentLayer = document.layers[\'' + args[i] + '\'];');
				if (CurrentLayer) CurrentLayer.visibility = 'show';
				document.layers['HideLayer'].visibility = 'show';
			}
			else { // IE 4+, NN 6.xx, Opera 6.xx
				eval('var CurrentLayer = document.getElementById(\'' + args[i] + '\');');
				if (CurrentLayer) CurrentLayer.style.visibility = 'visible';
				CurrentLayer = document.getElementById('HideLayer');
				CurrentLayer.style.visibility = 'visible';
			}
		}
	}


	function Hidemenu() {
		var LayersCollection,i,CurrentLayerID,Currentlayer;
			LayersCollection = document.getElementsByTagName("div");
			for (i=0; i<LayersCollection.length; i+=1) {
				CurrentLayerID = LayersCollection[i].id;
				if (CurrentLayerID.indexOf('Layer') >= 0) {
					eval('Currentlayer = document.getElementById(\'' + CurrentLayerID + '\');');
					Currentlayer.style.visibility = 'hidden';
				}
			}
	}