if (document.images) {

       img1on = new Image(32,32);							//Active buttons
       img1on.src = "MenuIcons/AboutUsIcon2.jpg";	
       img2on = new Image(32,32);	
       img2on.src = "MenuIcons/Services&ProductsIcon2.gif";
       img3on = new Image(32,32);	
       img3on.src = "MenuIcons/FAQIcon2.gif";
	   img4on = new Image(32,32);	
       img4on.src = "MenuIcons/NewsIcon2.gif";
	   img5on = new Image(32,32);	
       img5on.src = "MenuIcons/Info&ResearchIcon2.gif";
	   img6on = new Image(32,32);	
       img6on.src = "MenuIcons/ContactIcon2.gif";
	   

       img1off = new Image(32,32);							//Inactive buttons
       img1off.src = "MenuIcons/AboutUsIcon.jpg";	
       img2off = new Image(32,32);	
       img2off.src = "MenuIcons/Services&ProductsIcon.gif";
	   img3off = new Image(32,32);	
       img3off.src = "MenuIcons/FAQIcon.gif";
	   img4off = new Image(32,32);	
       img4off.src = "MenuIcons/NewsIcon.gif";
	   img5off = new Image(32,32);	
       img5off.src = "MenuIcons/Info&ResearchIcon.gif";
	   img6off = new Image(32,32);	
       img6off.src = "MenuIcons/ContactIcon.gif"; 
       }

    //set the image displayed to the active button image when the mouse is over the image
    function mouseOn(imgName)  {
	if (document.images)  {
		document[imgName].src = eval(imgName + "on.src");
          	}
    }

    //set the image displayed to the inactive button image when the mouse is off the image
    function mouseOff(imgName)  {
    if (document.images)  {
		document[imgName].src = eval(imgName + "off.src");
           	}        
    }