function is_empty(value) {
	if (value==null||value=="") {
		return true;
	}
	else {
		 return false;
	}
}

function confirm_delete() {
	if (confirm("Are you sure you want to delete?")) {
		return true;
	}
	else {
		return false;
	}
}

function validate_input_edit(thisbutton) {
	//button_value = thisbutton.value);
	//if (button_value=="Edit") {
		
	//}
	//else if (button_value="Delete") {
		
//	}
	
}

var btnWhichButton; // global variable

function validate_edit_form(thisform) {
	//alert(btnWhichButton.value);
	if (btnWhichButton.value == "New") {
		return true;	
	}
	else {
		if (is_empty(thisform.selected.value)) {
			alert("Please select an item first");
			return false;
		}
		else {
			return true;
		}
	}
}