function doFade(id,dir,opac){
	fadePic(id,dir,opac);
}
function fadePic(id,dir,opac){
	obj = document.getElementById(id);
	switch(dir){
		case "out":
			obj.style.opacity			= (opac / 100); 
			obj.style.MozOpacity		= (opac / 100); 
			obj.style.KhtmlOpacity		= (opac / 100); 
			obj.style.filter			= "alpha(opacity="+opac+")"; 		
			if(opac > 50){
				setTimeout("fadePic('"+id+"','"+dir+"',"+(opac-10)+")",25);
			}
		break;
		case "in":			
			obj.style.opacity			= (opac / 100); 
			obj.style.MozOpacity		= (opac / 100); 
			obj.style.KhtmlOpacity		= (opac / 100); 
			obj.style.filter			= "alpha(opacity="+opac+")"; 		
			if(opac < 100){
				setTimeout("fadePic('"+id+"','"+dir+"',"+(opac+10)+")",25);
			}
		break;
	}			
}