var objWindowOpen;
function f_openMotorHoteles(){
    var intWidth = 804;
	var intHeight = 570;
	var intX = (screen.availWidth - intWidth) / 2;
	var intY = (screen.availHeight - intHeight) / 2;
	if(!objWindowOpen || objWindowOpen.closed){
	   objWindowOpen = window.open("http://www.viajesnuevomundo.com/private_functionalities/web_forms/hotels/send_hotel.aspx","main_hotel","left="+intX+",top="+intY+",toolbar=0,scrollbars=yes,location=0,status=1,menubar=0,resizable=1,width="+intWidth+",height="+intHeight);
	   objWindowOpen.focus();
	}
	else {
	   objWindowOpen.focus();
	}
}