rolloverImagesOn=new Array();rolloverImagesOff=new Array();function rolloverOn(name) {  if(rolloverImagesOn[name]){    document.images[name].src=rolloverImagesOn[name].src;  }}function rolloverOff(name) {  if(rolloverImagesOff[name]){      document.images[name].src=rolloverImagesOff[name].src;  }}function rolloverLoad(name,on,off) {  rolloverImagesOn[name]=new Image();  rolloverImagesOn[name].src=on;  rolloverImagesOff[name]=new Image();  rolloverImagesOff[name].src=off;}