var emptyString = /^\s*$/ ;
var proceed = 2;  

function evalForm(formId,validationScript){
	if((validationScript=="")||eval(validationScript)){ 
		document.getElementById(formId).submit();
	}
}

function commonCheck    (valfield, required) {
	if (!document.getElementById)  return true; 
	if (emptyString.test(valfield.value)) {
		if (required) {
			setfocus(valfield);
			return false;
		}
		else {
			return true;  
		}
	}
	return proceed;
}
function validatePresent(valfield) {
  var stat = commonCheck (valfield, true);
  if (stat != proceed) return false;
  return true;
}
function validateEmail  (valfield, required) {
	var tfld = trim(valfield.value); 
	var email = /^[^@]+@[^@.]+\.[^@]*\w\w$/  ;
	if (!email.test(tfld)) {
		setfocus(valfield);
		return false;
	}
	var email2 = /^[A-Za-z][\w.-]+@\w[\w.-]+\.[\w.-]*[A-Za-z][A-Za-z]$/  ;
	return true;
}
function validateTelnr  (valfield, required) {
	var tfld = trim(valfield.value);  
	var telnr = /^\+?[0-9 ()-]+[0-9]$/  ;
	if (!telnr.test(tfld)) {
		setfocus(valfield);
		return false;
	}
	var numdigits = 0;
	for (var j=0; j<tfld.length; j++)
	if (tfld.charAt(j)>='0' && tfld.charAt(j)<='9') numdigits++;
	if (numdigits<6) {
		setfocus(valfield);
		return false;
	}
	return true;
}

function trim(str) { return str.replace(/^\s+|\s+$/g, ''); }

function setFocusDelayed() { global_valfield.focus(); }
function setfocus(valfield) {
	global_valfield = valfield;
	setTimeout('setFocusDelayed()',100);
}