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

/* Variables, go nuts changing those! */
	// initial position 
	var dn_startpos=220; 			
	// end position
	var dn_endpos=-220; 			
	// Speed of scroller higher number = slower scroller 
	var dn_speed=50;
	// 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='';	
	// ID of the generated paragraph
	var dn_paraID='DOMnewsstopper';

    var dn_interval;
    var playpause = true;
	/* 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('div');
		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()
		{		
            if (playpause) {
			  dn_interval = clearInterval(dn_interval);
            }
		}
		n.onmouseout=function()
		{
            if (playpause) {
			  dn_interval=setInterval('scrollDOMnews()',dn_speed);
            }
		}
	}

	function stopDOMnews() {
        if (playpause) {
           dn_interval = clearInterval(dn_interval);
           playpause = false;
           document.getElementById("ppscroller").innerHTML = "Start scroller";
        } else {
            dn_interval=setInterval('scrollDOMnews()',dn_speed);
            playpause = true;
            document.getElementById("ppscroller").innerHTML = "Stop scroller";
        }
	}
	function scrollDOMnews()
	{
		var n=document.getElementById(dn_newsID).getElementsByTagName('ul')[0];
        dn_endpos = -document.getElementById(dn_newsID).getElementsByTagName('ul')[0].offsetHeight;
        n.style.visibility = 'visible';
		n.style.top=dn_scrollpos+'px';	
		if(dn_scrollpos==dn_endpos){dn_scrollpos=dn_startpos;}
		dn_scrollpos--;	
	}