function openPren() {
	
	winWidth = 800;
	winHeight = 600;
	winOffX = (screen.width - winWidth - 22)/2;
	winOffY = (screen.height - winHeight)/2 - 30;
	winSpecs = "width="+winWidth+",height="+winHeight+",toolbar=0,menubar=0,scrollbars=1,resizable=1,location=0,directories=0,status=0,left=" + winOffX + ",top=" + winOffY;
	href = "https://www.hoteleasyreservations.com/her/her/pren.aspx?HOTEL="+document.all.HOTEL.value+"&HLANG="+document.all.HLANG.value+"&DTFROM="+document.all.DTFROM.value+"&NUMNOTTI="+document.all.NUMNOTTI.value+"&NUMCAMERE="+document.all.NUMCAMERE.value+"&NUMPERSONE="+document.all.NUMPERSONE.selectedIndex+"&LISTINO="+document.all.LISTINO.value+"&FASTRES=Y&RSTSS=Y";	
	window.open(_sslinkd(href,true),'_parent');
	//window.open(href,"prenotazioni",winSpecs);

	
}