function submit_form(form){
	form.submit();
	}

function empty_field(field){
	field.value='';
	}
function fill_field(field){
	field.value = field.name;
}

function is_empty(field){
	if(field.value==''){
		window.alert("Please fill in The " + field.name + "field ");
		return false;
	}
	else
		window.alert(field.value);
		
}