function open_wmarea(sid, hostname)
{
  F1 = window.open('http://' + hostname + '/?sid=' + sid, 'WM_Area', 'toolbar=no,scrollbars=yes,resizable=yes,width=795,height=830,screenX=100,screenY=100,left=100,top=100');
  F1.focus();
}

function open_impressum(sid, referer, hostname)
{
  F1 = window.open('impressum.php?'+ sid +'&referer='+referer, 'Impressum', 'toolbar=no,scrollbars=no,resizable=yes,width=300,height=330,screenX=100,screenY=100,left=100,top=100');
  F1.focus();
}

function checkNum(zahl)
{
	if(isNaN(zahl)==true)
	{
		alert('Bitte nur Zahlen eingeben!');
		document.getElementById('dauerfeld').value = '';
	}
}

function thumbnailSwapIn(src) {
	
	var Imdst = document.images['imageView'];		
	Imdst.src = src.src;		
}


function thumbnailSwapTop(Tsrc) {
	
	var Topdst = document.images['imageTop'];		
	Topdst.src = Tsrc.src;	
}
function changeTop(video, steckbriefid)
{
	var TopLinkdst = document.getElementById("topLink");		
	TopLinkdst.href = 'video_preview.php?sid=<? echo $sid; ?>&referer=<? echo $referer; ?>&steckbriefid='+steckbriefid+'&video='+video;	
}