function check_text(obj) {
	fieldName = obj.name;
	switch(fieldName) {
		case 'surname' : {
			value = obj.value;
			if(value == '*nume') {
				obj.value = '';
			} else if (value.length == 0) {
				obj.value = '*nume';
			}
		}; break;
		case 'email' : {
			value = obj.value;
			if(value == '*email') {
				obj.value = '';
			} else if (value.length == 0) {
				obj.value = '*email';
			}
		}; break;
		case 'msg' : {
			value = obj.value;
			if(value == '*comentariu') {
				obj.value = '';
			} else if (value.length == 0) {
				obj.value = '*comentariu';
			}
		}; break;
	};
}

function check_and_submit_form() {
	params = '';
	if($('surname').value == '*nume') {
		params += 'surname=';
	} else {
		params += $('surname').serialize();
	}
	if($('email').value == '*email') {
		params += '&email=';
	} else {
		params += '&'+$('email').serialize();
	}
	if($('msg').value == '*comentariu') {
		params += '&msg=';
	} else {
		params += '&'+$('msg').serialize();
	}
	params += '&submit=submit';
	new Ajax.Request('/check_post_form.html', {
		method: 'post',
		parameters: params,
		onSuccess: function(check) {
			if(check.responseText.length) {
				$('error_messages').innerHTML = check.responseText;
			} else {
				$('contact_form').submit();
			}
		}
	});
}