var timer;
	var counter = 0;
	
	function setfadein()
	{
		clearInterval(timer);
		timer = setInterval('fadein()',50);
	}
	function setfadeout()
	{
		clearInterval(timer);
		timer = setInterval('fadeout()',50);
	}
	function fadein()
	{
		var object = document.getElementById('popup').style;
		object.display='block';
		
		if (counter < 1)
		{
			counter+= .10;
			object.opacity = counter; 
    			object.MozOpacity = counter; 
    			object.KhtmlOpacity = counter; 
    			object.filter = "alpha(opacity=" + (counter*100) + ")"; 
		} 
	} 

	function fadeout()
	{
		var object = document.getElementById('popup').style;
		
		
		if (counter > 0)
		{
			counter-=.10;
    			object.opacity = counter; 
    			object.MozOpacity = counter; 
    			object.KhtmlOpacity = counter; 
    			object.filter = "alpha(opacity=" + (counter*100) + ")"; 
		} else
		{
		    object.display='none';
		}
	}