function Browser() {

  var ua, s, i;

  this.isIE    = false;
  this.isNS    = false;
  this.version = null;

  ua = navigator.userAgent;

  s = "MSIE";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isIE = true;
    this.version = parseFloat(ua.substr(i + s.length));
    return;
  }

  s = "Netscape6/";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isNS = true;
    this.version = parseFloat(ua.substr(i + s.length));
    return;
  }

  // Treat any other "Gecko" browser as NS 6.1.

  s = "Gecko";
  if ((i = ua.indexOf(s)) >= 0) {
    this.isNS = true;
    this.version = 6.1;
    return;
  }
}

var browser = new Browser();



function checkFields(formName) { // check if all required fields are filled
         var theForm = document.getElementById(formName);
         var rx = new RegExp('[^_]+__[^_]+');
         for (var i = 0; i < theForm.elements.length; i++) {
             if (theForm.elements[i].name)
                if (theForm.elements[i].name.match(rx)) {
                   var error = false;
                   if ((theForm.elements[i].name) && (theForm.elements[i].value == ''))
                      error = true;
                   else
                   if ((theForm.elements[i].options) && (theForm.elements[i].options[theForm.elements[i].selectedIndex].text == '- Select -'))
                      error = true;
                   if (error) {
                      alert('Töltsd ki a következo mezöt : ' + theForm.elements[i].title);
                      theForm.elements[i].focus();
                      return false;
                      }
                   }
             }
         return true;
         }

function checkEmail(field) {
         if (!document.getElementById(field)) return 1;
         var rx = /^[\w][-\w._]*[@][\w][-\w._]*[.][\w][\w]{1,4}$/i;
         var e = document.getElementById(field);
         var ok = rx.test(e.value);
         if (!ok) {
            alert('Érvénytelen email cím');
            e.focus();
            }
         return ok;
       }

function clearForm(formName) {
         var theForm = document.getElementById(formName);

         var rx = new RegExp('field_[_]?(.*)');
         var rx2 = new RegExp('form_[_]?(.*)');
         var rx3 = new RegExp('search_[_]?(.*)');
         var rx4 = new RegExp('skip');

         for (var i = 0; i < theForm.elements.length; i++) {

            if (((theForm.elements[i].name.match(rx))||(theForm.elements[i].name.match(rx2))||(theForm.elements[i].name.match(rx3)))&&(!theForm.elements[i].name.match(rx4))){

             if (theForm.elements[i].type=='checkbox')
                theForm.elements[i].checked = false;
             if ((theForm.elements[i].type=='text')||(theForm.elements[i].type=='textarea'))
                theForm.elements[i].value = '';
             if ((theForm.elements[i].type=='password'))
                theForm.elements[i].value = '';
             if (theForm.elements[i].type=='select-one')
                theForm.elements[i].selectedIndex = 0;
             if (theForm.elements[i].type=='hidden')
                theForm.elements[i].value = '';

             }
         }
      return false;
    }
function regChecked() {
         if (!document.getElementById("form_iwish")) return 1;
         var ok = (document.getElementById("form_iwish").checked);
         if (!ok) {
            alert('Jelölje be az "Igen, értesülni szeretnék" mezöt');
            document.getElementById("form_iwish").focus();
            }
         return ok;
       }

function getCheckedValue(radioObj) {
	if(!radioObj)
		return "";
	var radioLength = radioObj.length;
	if(radioLength == undefined)
		if(radioObj.checked)
			return radioObj.value;
		else
			return "";
	for(var i = 0; i < radioLength; i++) {
		if(radioObj[i].checked) {
			return radioObj[i].value;
		}
	}
	return "";
}