function toTop(id){
	document.getElementById(id).scrollTop=0
	}
	
	defaultStep=2
	step=defaultStep
	function scrollDivDown(id){
	document.getElementById(id).scrollTop+=step
	timerDown=setTimeout("scrollDivDown('"+id+"')",5)
	}
	
	function scrollDivUp(id){
	document.getElementById(id).scrollTop-=step
	timerUp=setTimeout("scrollDivUp('"+id+"')",5)
	}
	
	function toBottom(id){
	document.getElementById(id).scrollTop=document.getElementById(id).scrollHeight
	}
	
	function toPoint(id){
	document.getElementById(id).scrollTop=100
	}