<!-- hide from browsers that do not know JavaScript
        if (document.images) {
            img1on=new Image();   img1on.src="images/home_about1.gif";
            img2on=new Image();   img2on.src="images/home_prod1.gif";
            img3on=new Image();   img3on.src="images/home_proj1.gif";
            img4on=new Image();   img4on.src="images/home_contact1.gif";

						img10on=new Image();   img10on.src="images/sub_home1.gif";
						img11on=new Image();   img11on.src="images/sub_about1.gif";
            img12on=new Image();   img12on.src="images/sub_prod1.gif";
            img13on=new Image();   img13on.src="images/sub_proj1.gif";
            img14on=new Image();   img14on.src="images/sub_contact1.gif";

            img1off=new Image();  img1off.src="images/home_about.gif";
            img2off=new Image();  img2off.src="images/home_prod.gif";
            img3off=new Image();  img3off.src="images/home_proj.gif";
            img4off=new Image();  img4off.src="images/home_contact.gif";
            
            img10off=new Image();  img10off.src="images/sub_home.gif";
            img11off=new Image();  img11off.src="images/sub_about.gif";
            img12off=new Image();  img12off.src="images/sub_prod.gif";
            img13off=new Image();  img13off.src="images/sub_proj.gif";
            img14off=new Image();  img14off.src="images/sub_contact.gif";
        }
    function imgOn(imgName,txt) {
            if (document.images) {
                document[imgName].src = eval(imgName + "on.src");
            }
    }
    function imgOff(imgName) {
            if (document.images) {
                document[imgName].src = eval(imgName + "off.src");
            }
    }

// end hiding-->