if (document.images) {
	side_home_on = new Image(); side_home_on.src="images/side_home_on.gif";
	side_home_off = new Image(); side_home_off.src="images/side_home_off.gif";
	side_background_on = new Image(); side_background_on.src="images/side_background_on.gif";
	side_background_off = new Image(); side_background_off.src="images/side_background_off.gif";
	side_services_on = new Image(); side_services_on.src="images/side_services_on.gif";
	side_services_off = new Image(); side_services_off.src="images/side_services_off.gif";
	side_products_on = new Image(); side_products_on.src="images/side_products_on.gif";
	side_products_off = new Image(); side_products_off.src="images/side_products_off.gif";
	side_whatsnew_on = new Image(); side_whatsnew_on.src="images/side_whatsnew_on.gif";
	side_whatsnew_off = new Image(); side_whatsnew_off.src="images/side_whatsnew_off.gif";
	side_contactus_on = new Image(); side_contactus_on.src="images/side_contactus_on.gif";
	side_contactus_off = new Image(); side_contactus_off.src="images/side_contactus_off.gif";
	}  
       
function roll_over(imgName) {
            if (document.images) {
            imgOn = eval(imgName + "_on.src");
            document [imgName].src = imgOn;
            }
    }

function roll_out(imgName) {
            if (document.images) {
            imgOff = eval(imgName + "_off.src");
            document [imgName].src = imgOff;
            }
    }