// JavaScript Document
var status = "out";                  
function mouse_over() {
	  status = "over"
}
function mouse_out() {
	 status = "out"
}
function scroll_div(direction, speed) {
	var obj = document.getElementById('scroll');
   switch(direction) {
	 case "up":
	 obj.scrollTop += speed;
	  if(status == "over") {
			  setTimeout("scroll_div('up',"+speed+");", 1);
	  }
		if(obj.scrollTop==0){
		  document.getElementById('uparr').className='uparrinv';
	  } else {
		  document.getElementById('uparr').className='uparrvz';
	  }
	  	  if(obj.scrollTop==obj.scrollHeight-400){
		  document.getElementById('dnarr').className='dnarrinv';
	  } else {
		  document.getElementById('dnarr').className='dnarrvz';
	  }
	  //document.getElementById("status").innerHTML = obj.scrollTop + "/" + obj.scrollHeight
	 break;
							  
	  case "down":
	   obj.scrollTop -= speed;
		if(status == "over") {
		  setTimeout("scroll_div('down',"+speed+");", 1);
//document.getElementById("status").innerHTML = obj.scrollTop + "/" + obj.scrollHeight
		}
		if(obj.scrollTop==0){
		  document.getElementById('uparr').className='uparrinv';
	  } else {
		  document.getElementById('uparr').className='uparrvz';
	  }
	  if(obj.scrollTop==obj.scrollHeight-400){
		  document.getElementById('dnarr').className='dnarrinv';
	  } else {
		  document.getElementById('dnarr').className='dnarrvz';
	  }
	  break;
		 }
}