function writeHeader() {
	var st = '';
	var extension = '';
	var places = imatgeHome.split("/");
	
	//modificat arnau	
	var nomfitxer = places[places.length-1];
	var video = places[0];
	var altImatge = altImatgeHome;
	var urlImatge = urlImatgeHome;
	//modificat Ray
	    
	extension = nomfitxer.split(".");
	extension = extension[extension.length-1];
	
	if(video=="http:")
	{
		var imagen = document.getElementById("impacte");
		imagen.style.backgroundImage='';
		st += '<object width="225" height="272" align="middle" type="application/x-shockwave-flash"'
		st += 'data="'+imatgeHome+'&amp;%22%20classid=%22clsid:d27cdb6e-ae6d-11cf-96b8-444553540000%22"'
		st += 'codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0" title="AQU video" id="big_player">'
		st += '<param value="always" name="allowScriptAccess">'
		st += '<param value="true" name="allowFullScreen">'
		st += '<param value="'+imatgeHome+'" name="movie">'
		st += '<param value="high" name="quality">'
		st += '<param value="#ffffff" name="bgcolor"></object>'
	}
	 else
	{
	var target=""
		var temp = urlImatge.substring(4,0).toLowerCase();
		var urlAbsolute = (temp == "http");
				
		if(urlAbsolute)
		{
		 target = "_blank"
		}
		else
		{
		 target = ""
		}
	//fin modificat
	if (extension.toLowerCase()=='swf') 
	{
		var imagen = document.getElementById("impacte");
		imagen.style.backgroundImage='';
			st += '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="1003" height="112">';
			st += '<param name="movie" value="'+imatgeHome+'" />';
			st += '<param name="quality" value="high" />';
			st += '<param name="menu" value="false" />';
			st += '<param name="pluginurl" value="http://www.macromedia.com/go/getflashplayer" />';
			st += '<embed src="'+imatgeHome+'" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="1003" height="112" wmode="transparent" menu="false"></embed>';
			st += '</object>';
	} else 
	{
		var imagen = document.getElementById("impacte");
		imagen.style.backgroundImage='';
		if(urlImatge!="")
		{
		st += '<a href="'+urlImatge+'" target="'+target+'"><img src="'+imatgeHome+'" alt="'+altImatge+'" title="'+altImatge+'" /></a>';
		}
		else
		{
		st += '<img src="'+imatgeHome+'" alt="'+altImatge+'" title="'+altImatge+'" />';
		}
	}
}
return (st);	
}

function openWindow(url, w, h) {
    var options = 'left=0,top=0,width=' + w + ',height=' + h + ',';
    options += 'resizable=no,scrollbars=yes,status=yes,';
    options += 'menubar=no,toolbar=no,location=no,directories=no';
    var newWin = window.open(url, 'newWin', options);
    newWin.focus();
}