arrow_on   = "/images/arrow.gif";
arrow_off  = "/images/arrow_off.gif";
logo_on    = "/images/webLogo_small_on.gif";
logo_off   = "/images/webLogo_small.gif";

cacheImg = new Array();
imgPreFetch(0,arrow_on);  
imgPreFetch(1,arrow_off);   
imgPreFetch(2,logo_on);   
imgPreFetch(3,logo_off);   

function imgPreFetch(i, img) {
 if(!document.images){
    return; 
	  } else {
    	cacheImg[i] = new Image();
    	cacheImg[i].src = img;
   			 if (i == 3){
   		 allDone = true;
		}
	} 	 
}


function changeLogo(wm,s){
	var dm = document.images;
	window.status = "\t\t" + wm
	if (document.images){
		if (s){
			  dm['logo'].src= logo_on
			  } else {
			  dm['logo'].src= logo_off
			}	
		}
	}