<!--
      if (document.images) 
	{            


            lbut1on = new Image();   lbut1on.src =  "images/enter_2_on.gif"; 
            lbut1off = new Image();  lbut1off.src = "images/enter_2.gif"; 


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

// -->