bName = navigator.appName;
bVer = parseInt (navigator.appVersion);
	if ((bName == "Netscape" && bVer >= 3) ||
		 (bName == "Microsoft Internet Explorer" && bVer >= 4)) br = "n3";
		 else br = "n2";
		 
		 if (br== "n3") {

		 img1on = new Image();
		 img1on.src = "nav/de_n11.png";

		 img2on = new Image();
		 img2on.src = "nav/de_n21.png";
		 		 
		 img3on = new Image();
		 img3on.src = "nav/de_n31.png";
		 
		 img4on = new Image();
		 img4on.src = "nav/de_n41.png"; 

		 img5on = new Image();
		 img5on.src = "nav/de_n51.png";
		 


		 img1off = new Image();
		 img1off.src = "nav/de_n1.png";
	
		 img2off = new Image();
		 img2off.src = "nav/de_n2.png";
		 		 
		 img3off = new Image();
		 img3off.src = "nav/de_n3.png";
		 
		 img4off = new Image();
		 img4off.src = "nav/de_n4.png"; 

		 img5off = new Image();
		 img5off.src = "nav/de_n5.png"; 



		 		 
		}

	function imgAct (imgName) {
		if (br== "n3") {
		document[imgName].src = eval(imgName + "on.src");
		}
	}
	
	
	function imgInact (imgName) {
		if (br=="n3") {
		document[imgName].src = eval(imgName + "off.src");
		}
	}