function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		btn_songs_over = newImage("images/btn_songs-over.gif");
		btn_biography_over = newImage("images/btn_biography-over.gif");
		btn_concerts_over = newImage("images/btn_concerts-over.gif");
		btn_feedback_over = newImage("images/btn_feedback-over.gif");
		btn_CL_index_up_over = newImage("images/btn_CL_index_up-over.gif");
		btn_CL_index_down__over = newImage("images/btn_CL_index_down--over.gif");
		CR_aarswells_over = newImage("images/CR_aarswells-over.gif");
		preloadFlag = true;
	}
}


//Div scroll functions
 var ravelTimer;
 
 function Get(id){
  return document.getElementById(id);
 }
 function scroll_down(){
  var element = this.Get("scroll_content");
	element.style.top = parseInt(element.style.top)-1;
	ravelTimer = setTimeout("scroll_down()",20);
 }
 function scroll_up(){
  var element = this.Get("scroll_content");
   if(parseInt(element.style.top) < 0){
	   element.style.top = parseInt(element.style.top)+1;
	   ravelTimer = setTimeout("scroll_up()",20); 
   }
 }
 function StopRavel(){
	clearTimeout(ravelTimer);
 }

 function ShowTop(){
  var element = this.Get("scroll_content");
   alert(element.style.top);
 }