function checkContactForm(form) {
	var error = false;
	var errorMessage = "";
	if(form.vaseMeno.value == "") {
		error = true;
		errorMessage += "\n * " + TRANSLATE_contactFormYourNameIsEmpty;
		form.vaseMeno.style.background = "yellow";
	}
	
	if(contactFormValidateEmail(form.vasaElektronickaAdresa.value) == false) {
		error = true;
		errorMessage += "\n * " + TRANSLATE_contactFormYourEmailIsEmpty;
		form.vasaElektronickaAdresa.style.background = "yellow";
	}
	
	if(form.vasText.value == "") {
		error = true;
		errorMessage += "\n * " + TRANSLATE_contactFormTextIsEmpty;
		form.vasText.style.background = "yellow";
	}
	
	//error = false;
	
	if(error == false) {
		return true;
	} else {
		alert(TRANSLATE_CMS_CONTACT_FORM_ERRORS + ": " + errorMessage);
		return false;
	}
}

function contactFormValidateEmail(elementValue) {
	return contactFormTestRegExp(elementValue, '^[-!#$%&\'*+\\./0-9=?A-Z^_`a-z{|}~]+@[-!#$%&\'*+\\/0-9=?A-Z^_`a-z{|}~]+\.[-!#$%&\'*+\\./0-9=?A-Z^_`a-z{|}~]+$');
}

function contactFormTestRegExp(elementValue, re) {
	if(window.RegExp) {
		return new RegExp(re).test(elementValue);
	} else {
		return true;
	}
}