/*
	DOMnews 1.0 
	homepage: http://www.onlinetools.org/tools/domnews/
	released 11.07.05
*/

/* Variables, go nuts changing those! */
	// initial position 
	var dn_startpos=200; 			
	// end position
	var dn_endpos=-200; 			
	// Speed of scroller higher number = slower scroller 
	var dn_speed=30;				
	// ID of the news box
	var dn_newsID='news';			
	// class to add when JS is available
	var dn_classAdd='hasJS';		
	// Message to stop scroller
	var dn_stopMessage='Stop scroller';	
	// ID of the generated paragraph
	var dn_paraID='DOMnewsstopper';
	// Direzione globale
	var global_dir='up';


	/* Initialise scroller when window loads */
	window.onload=function()
	{
		// check for DOM
		if(!document.getElementById || !document.createTextNode){return;}
		initDOMnews();
		// add more functions as needed
	}
	/* stop scroller when window is closed */
	window.onunload=function()
	{
		clearInterval(dn_interval);
	}

/*
	This is the functional bit, do not press any buttons or flick any switches
	without knowing what you are doing!
*/

	var dn_scrollpos=dn_startpos;
	/* Initialise scroller */
	
	function initDOMnews()
	{
		var n=document.getElementById(dn_newsID);
		if(!n){return;}
		n.className=dn_classAdd;
		dn_interval=setInterval('scrollDOMnews()',dn_speed);
		//var newa=document.createElement('a');
		//var newp=document.createElement('p');
		//newp.setAttribute('id',dn_paraID);
		//newa.href='#';
		//newa.appendChild(document.createTextNode(dn_stopMessage));
		//newa.onclick=stopDOMnews;
		//newp.appendChild(newa);
		//n.parentNode.insertBefore(newp,n.nextSibling);
		n.onmouseover=function()
		{		
			clearInterval(dn_interval);
		}
		n.onmouseout=function()
		{	
			if(global_dir=='up') dn_interval=setInterval('scrollDOMnews(\'up\')',dn_speed);
			else dn_interval=setInterval('scrollDOMnews(\'down\')',dn_speed);
		}
	}

	function stopDOMnews()
	{
		clearInterval(dn_interval);
		var n=document.getElementById('news');
		n.className='';
		n.parentNode.removeChild(n.nextSibling);
		return false;
	}
	function scrollDOMnews(direction)
	{
		var n=document.getElementById(dn_newsID).getElementsByTagName('ul')[0];
		n.style.top=dn_scrollpos+'px';	
		if ( direction == 'down' ) {
			if ( dn_scrollpos == dn_startpos ) {
				dn_scrollpos = dn_endpos
			}
			dn_scrollpos++;
			global_dir='down';
		}
		else {	// up
			if ( dn_scrollpos == dn_endpos ) {
				dn_scrollpos = dn_startpos
			}
			dn_scrollpos--;
			global_dir='up';
		}	
	}

	function setDirection(direction) {
		clearInterval(dn_interval)
		dn_direction = direction
		dn_interval = setInterval('scrollDOMnews(dn_direction)',dn_speed)
	}