var oldMen = 1;
	var menLeng = 4;

	var ns4 = 0;  var ie4 = 0;  var dom = 0;				

	if (document.getElementById){ dom = true;}
	else{ if (document.all){ ie4 = true;}
	else{ if (document.layers){ ns4 = true;}}}
	//alert(" dom="+dom+"\n ie4="+ie4+"\n ns4="+ns4);

	var menArr = new Array(); var menSel = new Array();var menAkt = new Array();
			
	for(i=1; i <= menLeng ;i++){ 
		menArr[i] = new Image(); menSel[i] = new Image(); 
		menArr[i].src = "../images/menu0"+i+"-1.gif"; menSel[i].src = "../images/menu0"+i+"-2.gif"; }
					 
	function menuOn(X) {if(X != oldMen){ document.images["nav"+X].src = menSel[X].src;}}
	function menuOff(X){if(X != oldMen){ document.images["nav"+X].src = menArr[X].src;}}