<!-- hide from browsers that do not know JavaScript

        if (document.images) {
            img1on=new Image();   img1on.src="images/s7.gif";
            
            img1off=new Image();   img1off.src="images/s7a.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-->