var dw_startpos=50; 			
var dw_endpos=-120; 			
var dw_speed=50;				
var dw_tipsID='tips';			
var dw_classAdd='hasJS';		
var dw_paraID='DOMtipsstopper';

window.onload=function()
{
	if(!document.getElementById || !document.createTextNode){return;}
	initDOMtips();
}

window.onunload=function()
{
	clearInterval(dw_interval);
}


var dw_scrollpos=dw_startpos;
/* Initialise scroller */
function initDOMtips()
{
	var n=document.getElementById(dw_tipsID);
	if(!n){return;}
	n.className=dw_classAdd;
	dw_interval=setInterval('scrollDOMtips()',dw_speed);
	var newa=document.createElement('a');
	var newp=document.createElement('p');
	newp.setAttribute('id',dw_paraID);
	newa.href='#';
	n.parentNode.insertBefore(newp,n.nextSibling);
	n.onmouseover=function()
	{		
		clearInterval(dw_interval);
	}
	n.onmouseout=function()
	{
		dw_interval=setInterval('scrollDOMtips()',dw_speed);
	}
}

function stopDOMtips()
{
	clearInterval(dw_interval);
	var n=document.getElementById('tips');
	n.className='';
	n.parentNode.removeChild(n.nextSibling);
	return false;
}
function scrollDOMtips()
{
	var n=document.getElementById(dw_tipsID).getElementsByTagName('ul')[0];
	n.style.top=dw_scrollpos+'px';	
	if(dw_scrollpos==dw_endpos){dw_scrollpos=dw_startpos;}
	dw_scrollpos--;	
}