homeon=new Image();
	homeon.src="images/nav1_home_on.gif";
	homeoff=new Image();
	homeoff.src="images/nav1_home_off.gif";
	
	aboutuson=new Image();
	aboutuson.src="images/nav2_aboutus_on.gif";
	aboutusoff=new Image();
	aboutusoff.src="images/nav2_aboutus_off.gif";	
		
	prodinfoon=new Image();
	prodinfoon.src="images/nav3_prodinfo_on.gif";
	prodinfooff=new Image();
	prodinfooff.src="images/nav3_prodinfo_off.gif";

	trialon=new Image();
	trialon.src="images/nav4_trial_on.gif";
	trialoff=new Image();
	trialoff.src="images/nav4_trial_off.gif";

	contacton=new Image();
	contacton.src="images/nav5_contact_on.gif";
	contactoff=new Image();
	contactoff.src="images/nav5_contact_off.gif";
	
	supporton=new Image();
	supporton.src="images/nav6_support_on.gif";
	supportoff=new Image();
	supportoff.src="images/nav6_support_off.gif";	
	
	function Imageon(imgName) 
    {
        if (document.images)
            document[imgName].src = eval(imgName + 'on.src');
    }

    function Imageoff(imgName) 
    {
        if (document.images)
            document[imgName].src = eval(imgName + 'off.src');
    }