var fV = {
  addEvent: function(elm, evType, fn, useCapture) {
    // cross-browser event handling for IE5+, NS6 and Mozilla 
    // By Scott Andrew
	if(elm){
    if (elm.addEventListener) {
      elm.addEventListener(evType, fn, useCapture);
      return true;
    } else if (elm.attachEvent) { 
      var r = elm.attachEvent('on' + evType, fn);
      return r;
    } else {
      elm['on' + evType] = fn; 
    }}
  },

  init: function() {
    for (var i in validationSet) {
      if (document.getElementsByName(i)) {
        var formField = document.getElementsByName(i)[0];
		if(formField){
        fV.addEvent(formField, 'blur', fV.checkValid, false);

        if (!formField.form.validateSubmit) {
          fV.addEvent(formField.form, 'submit', fV.checkValidSubmit, false);
          formField.form.onsubmit = fV.checkSubmit; // Safari
          formField.form.validateSubmit = true;
        }}
      }
    }
	fV.addEvent(document.getElementById('repeat-password'), 'blur', checkPasswords, false);
	//fV.addEvent(document.getElementById('password'), 'blur', checkPasswords, false);
  },

  checkValidSubmit: function(e) {
    var frm = window.event ? window.event.srcElement : e ? e.target : null;
    if (!frm) return;
    var errText = [];

    for (var i = 0; i < frm.elements.length; i++) {
      if (frm.elements[i].name && validationSet[frm.elements[i].name]) {

        var failedE = fV.handleValidity(frm.elements[i]);

        //var errDisplay = document.getElementById('error_' + frm.elements[i].name);
		//alert(validationSet[frm.elements[i].name]['errorTarget']);
		var errDisplay = document.getElementById(validationSet[frm.elements[i].name]['errorTarget']);
        if (failedE && errDisplay) {
          errDisplay.innerHTML = "[ wrong ] ";
          //errDisplay.innerHTML = validationSet[failedE.name]['error'];
			//target.style.color="#f60";
			target.style.backgroundColor="#ff9f9f";
			target.style.fontWeight="bold";
        }
        if (!failedE && errDisplay) {
          errDisplay.innerHTML = '';
	  	  target.style.color="#000";
		  target.style.backgroundColor="#fff";
		  target.style.fontWeight="normal";
        }

        if (failedE) {
          var labels = document.getElementsByTagName('label');
          errText[errText.length] = validationSet[failedE.name]['error'];
          for (var j = 0; j < labels.length; j++) {
            if (labels[j].htmlFor == failedE.id) {
              errText[errText.length - 1] +=
                  ' (field \'' + labels[j].firstChild.nodeValue + '\')';
            }
          }
        }
      }  /* end 'if' */
    } /* end 'for' */

    if (errText.length > 0) {
      alert('Please fix the following errors and resubmit:\n' +
          errText.join('\n'));
      frm.submitAllowed = false;
      if (e && e.stopPropagation && e.preventDefault) {
        e.stopPropagation();
        e.preventDefault();
      }
      if (window.event) {
        window.event.cancelBubble = true;
        window.event.returnValue = false;
        return false;
      }
    } else {
      frm.submitAllowed = true;
    }
  },

  checkSubmit: function() {
    if (this.attachEvent) return true;
    return this.submitAllowed;
  },
  
  checkValid: function(e) {
    var target = window.event ? window.event.srcElement : e ? e.target : null;
    if (!target) return;

    var failedE = fV.handleValidity(target);
	
    //var errDisplay = document.getElementById('error_' + target.name);
	var errDisplay = document.getElementById(validationSet[target.name]['errorTarget']);

    if (failedE && errDisplay) {
      //errDisplay.innerHTML = validationSet[failedE.name]['error'];
		//target.style.color="#f60";
		target.style.backgroundColor="#ff9f9f";
		target.style.backgroundColor="#ffd7d8";
		//document.getElementById(target.id+"L").style.color="#c33";
		//target.style.fontWeight="bold";
	  //errDisplay.innerHTML="<img src=\"../../images/litle-cross.gif\" alt=\""+validationSet[failedE.name]['error']+"\" title=\""+validationSet[failedE.name]['error']+"\" />";
	  errDisplay.innerHTML=validationSet[failedE.name]['error'];
      //failedE.focus();
    }
    if (failedE && !errDisplay) {
      //alert(validationSet[failedE.name]['error']);
	  target.style.backgroundColor="#ffd7d8";
    }
    if (!failedE && errDisplay) {
	  target.style.color="#000";
	  target.style.backgroundColor="";
	  //document.getElementById(target.id+"L").style.color="#000";
	  target.style.fontWeight="normal";
	  errDisplay.innerHTML="<img src=\"../../images/litle-tick.gif\" alt=\"correct input\" />";
	  errDisplay.innerHTML="";
    }
  },

  handleValidity: function(field) {
	/*
    if (!field.value) {
      return null;
    }*/
    var re = validationSet[field.name]['regexp'];
    if (!field.value.match(re)) {
      return field;
    } else {
      return null;
    }
  }
}
fV.addEvent(window, 'load', fV.init, false);

function hideSelectBoxes()
	{
		var tips = document.getElementsByTagName("select");
		 for (var i = 0; i < tips.length; i++)
		 {
		   tips[i].style.visibility="hidden";
		 }
		 return true;
	}

	function unHideSelectBoxes()
	{
		var tips = document.getElementsByTagName("select");
		 for (var i = 0; i < tips.length; i++)
		 {
		   tips[i].style.visibility="visible";
		 }
		 return true;
	}
	
	function checkPasswords()
	{
		//alert(document.getElementById('repeat-password').value + " =?= " + document.getElementById('password').value);
		if(document.getElementById('repeat-password').value ==	document.getElementById('password').value)
		{
			document.getElementById('passeror').style.display = "none";
		}
		else
		{
			document.getElementById('passeror').style.display = "block";
		}
	}
	
	function hideLangButton()
	{
		document.getElementById('taalKnop').style.display="none";	
	}