// image button highlighting
		if (document.images) {

			// Home
	        var n_home_lo = new Image();
		    var n_home_hi = new Image();
			n_home_lo.src = "media/n_home_lo.gif";
        	n_home_hi.src = "media/n_home_hi.gif";

			// what
	        var n_what_lo = new Image();
		    var n_what_hi = new Image();
			n_what_lo.src = "media/n_what_lo.gif";
        	n_what_hi.src = "media/n_what_hi.gif";

			// expert
	        var n_expert_lo = new Image();
		    var n_expert_hi = new Image();
			n_expert_lo.src = "media/n_expert_lo.gif";
        	n_expert_hi.src = "media/n_expert_hi.gif";
			
			// help
	        var n_help_lo = new Image();
		    var n_help_hi = new Image();
			n_help_lo.src = "media/n_help_lo.gif";
        	n_help_hi.src = "media/n_help_hi.gif";

			// industry
	        var n_industry_lo = new Image();
		    var n_industry_hi = new Image();
			n_industry_lo.src = "media/n_industry_lo.gif";
        	n_industry_hi.src = "media/n_industry_hi.gif";

			// contact
	        var n_contact_lo = new Image();
		    var n_contact_hi = new Image();
			n_contact_lo.src = "media/n_contact_lo.gif";
        	n_contact_hi.src = "media/n_contact_hi.gif";

        }
        function LoLite(imgName) {			
            if (document.images) 
              document[imgName].src = eval(imgName + '_lo.src')
        }
        function HiLite(imgName) {
            if (document.images)
              document[imgName].src = eval(imgName + '_hi.src')
        }