function dn_printRef(){
	 var w = window.open('forms/reference form.pdf','PrintingRef','HEIGHT=450,WIDTH=700,RESIZABLE=YES,SCROLLBARS=YES,TOOLBAR=YES');
}
function dn_printForm(bookingref){
	if(bookingref!=''){
		var w = window.open('forms/print_db.php?bookingref='+bookingref,'Printing','HEIGHT=450,WIDTH=700,RESIZABLE=YES,SCROLLBARS=YES,TOOLBAR=YES');
	} else {
		var w = window.open('forms/print.php?id='+document.forms[0].id.value,'Printing','HEIGHT=450,WIDTH=700,RESIZABLE=YES,SCROLLBARS=YES,TOOLBAR=YES');
	}
}