if (document.images) {            
            img1on = new Image(); 
            img1on.src = "/images/nav_c_on.gif"; 
            img2on = new Image(); 
            img2on.src = "/images/nav_l_on.gif"; 
            img3on = new Image();          
            img3on.src = "/images/nav_p_on.gif"; 
            img4on = new Image();
            img4on.src = "/images/nav_m_on.gif";
            img5on = new Image();
            img5on.src = "/images/nav_a_on.gif";
            img6on = new Image();
            img6on.src = "/images/nav_cs_on.gif";
			img7on = new Image();
            img7on.src = "/images/nav_s_on.gif";
            
            img1off = new Image(); 
            img1off.src = "/images/nav_c_off.gif"; 
            img2off = new Image(); 
            img2off.src = "/images/nav_l_off.gif"; 
            img3off = new Image();          
            img3off.src = "/images/nav_p_off.gif"; 
            img4off = new Image();
            img4off.src = "/images/nav_m_off.gif";
            img5off = new Image();
            img5off.src = "/images/nav_a_off.gif";
            img6off = new Image();
            img6off.src = "/images/nav_cs_off.gif";
			img7off = new Image();
            img7off.src = "/images/nav_s_off.gif";
	    }
        
        function imgOn(imgName) {
	        if (document.images) {
    	        document[imgName].src = eval(imgName + "on.src");  }
		}
		
		function imgOff(imgName) {
        	if (document.images) {
        	    document[imgName].src = eval(imgName + "off.src");
        	}
        }

	function openWindow(url)
			{
			var window_settings = "width=640,height=500,left=25,top=25,scrollbars=yes,status=no,resizable=no,menubar=no";
			var presspop_window = window.open(url, "presspop", window_settings)
			}

	function openForgot(url)
			{
			var window_settings = "width=300,height=200,left=25,top=25,scrollbars=yes,status=no,resizable=no,menubar=no";
			var presspop_window = window.open(url, "forgot", window_settings)
			}
			
	function openViewer(url)
			{
			var window_settings = "width=720,height=720,left=25,top=25,scrollbars=yes,status=no,resizable=no,menubar=no";
			var presspop_window = window.open(url, "viewerpop", window_settings)
			}