function preloadImages() {
  if(document.images){
    if(!document.picts){
	  document.picts=new Array();
	}
	var j=document.picts.length, a=preloadImages.arguments;
	for(var i=0; i<a.length; i++) {
	  if (a[i].indexOf("#")!=0){
	    document.picts[j]=new Image;
		document.picts[j++].src=a[i];
	  }
	}
  }
}  
preloadImages("/images/question.gif","/images/question2.gif","/images/envelope.gif","/images/envelope2.gif");