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     pic1on.src="images/nav/main_hover.jpg";
     pic2on= new Image(30,18);
     pic2on.src="images/nav/features_hover.jpg";
     pic3on= new Image(30,18);
     pic3on.src="images/nav/information_hover.jpg";
     pic4on= new Image(30,18);
     pic4on.src="images/nav/multimedia_hover.jpg";
     pic5on= new Image(30,18);
     pic5on.src="images/nav/forums_hover.jpg";
     
     pic1off= new Image(30,18);
     pic1off.src="images/nav/main.jpg"; 
     pic2off= new Image(30,18);
     pic2off.src="images/nav/features.jpg";
     pic3off= new Image(30,18);
     pic3off.src="images/nav/information.jpg";
     pic4off= new Image(30,18);
     pic4off.src="images/nav/multimedia.jpg";
     pic5off= new Image(30,18);
     pic5off.src="images/nav/forums.jpg";
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function lightup(imgName)
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function turnoff(imgName)
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//-->