function clearField(field) {
	if(field.value=='MM/DD/YYYY')field.value='';
}
function updateStart(cal) {
	var date = cal.date;
	//field = document.getElementById("f_date_a");
	// Update Start hidden fields 
	document.getElementById("start_month").value = date.print("%m");
	document.getElementById("start_day").value = date.print("%d");
	document.getElementById("start_year").value = date.print("%Y");	
}
function updateEnd(cal) {
	var date = cal.date;
	//var field = document.getElementById("f_date_b");
	// Update End hidden fields
	document.getElementById("end_month").value = date.print("%m");
	document.getElementById("end_day").value = date.print("%d");
	document.getElementById("end_year").value = date.print("%Y");
}
function updateStartHidden(field) {
	if (field.value != "") {
		var date_arr = field.value.split(/[\/-]+/)
		document.getElementById("start_month").value = date_arr[0];
		document.getElementById("start_day").value = date_arr[1];
		document.getElementById("start_year").value = date_arr[2];
		field.value = date_arr[0]+"/"+date_arr[1]+"/"+date_arr[2]; 
	}
}
function updateEndHidden(field) {
	if (field.value != "") {
		var date_arr = field.value.split(/[\/-]+/)
		document.getElementById("end_month").value = date_arr[0];
		document.getElementById("end_day").value = date_arr[1];
		document.getElementById("end_year").value = date_arr[2];
		field.value = date_arr[0]+"/"+date_arr[1]+"/"+date_arr[2];
	}
}