function checkForm() {
	
	if(document.calform.datebox.value==""){
		alert("Check In Date is missing");
		document.calform.datebox.focus();
		return;
		}
	if(document.calform.datebox2.value==""){
		alert("Check Out Date is missing");
		document.calform.datebox2.focus();
		return;
		}
		
	document.calform.submit();
}