if(document.images) {
     
		
		aoff = new Image();
		aoff.src = "images/aoff.gif";
		aover = new Image();
		aover.src = "images/aover.gif";
		
		
		hoff = new Image();
		hoff.src = "images/hoff.gif";
		hover = new Image();
	        hover.src = "images/hover.gif";
		
		
		foff = new Image();
		foff.src = "images/foff.gif";
		fover = new Image();
		fover.src = "images/fover.gif";
		
                roff = new Image();
		roff.src = "images/roff.gif";
		rover = new Image();
		rover.src = "images/rover.gif";
		  		
                ioff = new Image();
		ioff.src = "images/ioff.gif";
		iover = new Image();
		iover.src = "images/iover.gif";

                doff = new Image();
		doff.src = "images/doff.gif";
		dover = new Image();
		dover.src = "images/dover.gif";

                goff = new Image();
		goff.src = "images/goff.gif";
		gover = new Image();
		gover.src = "images/gover.gif";
                                      
                acoff = new Image();
		acoff.src = "images/acoff.gif";
                acover = new Image();
		acover.src = "images/acover.gif";

		poff = new Image();
		poff.src = "images/poff.gif";
		pover = new Image();
		pover.src = "images/pover.gif";
}

function onoff(imgName,state) {
        if(document.images) {               
		document.images[imgName].src = eval(imgName+state+".src");
        }
}