if (document.images) 
    {
    bttn1on= new Image();
    bttn1on.src="img/pub/navbar_03a.gif"
    bttn1off= new Image();
    bttn1off.src="img/pub/navbar_03.gif"
	 bttn2on= new Image();
    bttn2on.src="img/pub/navbar_05a.gif"
    bttn2off= new Image();
    bttn2off.src="img/pub/navbar_05.gif"
	 bttn3on= new Image();
    bttn3on.src="img/pub/navbar_07a.gif"
    bttn3off= new Image();
    bttn3off.src="img/pub/navbar_07.gif"
	 bttn4on= new Image();
    bttn4on.src="img/pub/navbar_09a.gif"
    bttn4off= new Image();
    bttn4off.src="img/pub/navbar_09.gif"
	 bttn5on= new Image();
    bttn5on.src="img/pub/navbar_11a.gif"
    bttn5off= new Image();
    bttn5off.src="img/pub/navbar_11.gif"
	 bttn6on= new Image();
    bttn6on.src="img/pub/navbar_13a.gif"
    bttn6off= new Image();
    bttn6off.src="img/pub/navbar_13.gif"
	 bttn7on= new Image();
    bttn7on.src="img/pub/navbar_15a.gif"
    bttn7off= new Image();
    bttn7off.src="img/pub/navbar_15.gif"
	 bttn8on= new Image();
    bttn8on.src="img/pub/addfavea.gif"
    bttn8off= new Image();
    bttn8off.src="img/pub/addfave.gif"	 
    } 


function lightUp(imgName)
    {
    if (document.images)
        {
            imgOn=eval(imgName + "on.src");
            document[imgName].src= imgOn;
        }
    } 

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