function show_overlay(action, downloadID, url, language){
	if(action=='register'){
		document.getElementById('overlay-input').innerHTML='<iframe name="overlay-iframe" id="overlay-iframe" src="'+url+'iframe/register.php?downloadID='+downloadID+'&language='+language+'" allowtransparency="true" marginheight="0" marginwidth="0" scrolling="auto" frameborder="0" width="750" style="width:750px; border:0px; background:none;"></iframe>';
	}else if(action=='lostPW'){
		document.getElementById('overlay-input').innerHTML='<iframe name="overlay-iframe" id="overlay-iframe" src="'+url+'iframe/lost-pw.php?language='+language+'" allowtransparency="true" marginheight="0" marginwidth="0" scrolling="auto" frameborder="0" width="750" style="width:750px; border:0px; background:none;"></iframe>';	
	}else if(action=='buyCREDITS'){
		document.getElementById('overlay-input').innerHTML='<iframe name="overlay-iframe" id="overlay-iframe" src="'+url+'iframe/buy-credits.php?downloadID='+downloadID+'&language='+language+'" allowtransparency="true" marginheight="0" marginwidth="0" scrolling="auto" frameborder="0" width="750" height="450" style="width:750px; height:450px; border:0px; background:none;"></iframe>';	
	}else if(action=='download'){
		document.getElementById('overlay-input').innerHTML='<iframe name="overlay-iframe" id="overlay-iframe" src="'+url+'iframe/download.php?downloadID='+downloadID+'&language='+language+'" allowtransparency="true" marginheight="0" marginwidth="0" scrolling="auto" frameborder="0" width="750" style="width:750px; height:250px; border:0px; background:none;"></iframe>';		
	}
	document.getElementById('overlay-black').style.display="inline";
	document.getElementById('overlay-container').style.display="inline";
}

function closeOverlay(){
	document.getElementById('overlay-black').style.display='none'; 
	document.getElementById('overlay-container').style.display='none';
}
function updateCredits(credits){
	document.getElementById('current_credits').innerHTML=credits; 
}