function trim(inputString) {
   // Removes leading and trailing spaces from the passed string. Also removes
   // consecutive spaces and replaces it with one space. If something besides
   // a string is passed in (null, custom object, etc.) then return the input.
   if (typeof inputString != "string") { return inputString; }
   var retValue = inputString;
   var ch = retValue.substring(0, 1);
   while (ch == " ") { // Check for spaces at the beginning of the string
      retValue = retValue.substring(1, retValue.length);
      ch = retValue.substring(0, 1);
   }
   ch = retValue.substring(retValue.length-1, retValue.length);
   while (ch == " ") { // Check for spaces at the end of the string
      retValue = retValue.substring(0, retValue.length-1);
      ch = retValue.substring(retValue.length-1, retValue.length);
   }
   while (retValue.indexOf("  ") != -1) { // Note that there are two spaces in the string - look for multiple spaces within the string
      retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); // Again, there are two spaces in each of the strings
   }
   return retValue; // Return the trimmed string back to the user
} // Ends the "trim" function


function replace(inputString, fromString, toString) {
   // Goes through the inputString and replaces every occurrence of fromString with toString
   inputString = trim(inputString);
   fromString = trim(fromString);
   toString = trim(toString);
   var temp = inputString;
   if (fromString == "") {
      return temp;
   }
   if (toString.indexOf(fromString) == -1) { // If the string being replaced is not a part of the replacement string (normal situation)
      while (temp.indexOf(fromString) != -1) {
         var toTheLeft = temp.substring(0, temp.indexOf(fromString));
         var toTheRight = temp.substring(temp.indexOf(fromString)+fromString.length, temp.length);
         temp = toTheLeft + toString + toTheRight;
      }
   } else { // String being replaced is part of replacement string (like "+" being replaced with "++") - prevent an infinite loop
      var midStrings = new Array("~", "`", "_", "^", "#");
      var midStringLen = 1;
      var midString = "";
      // Find a string that doesn't exist in the inputString to be used
      // as an "inbetween" string
      while (midString == "") {
         for (var i=0; i < midStrings.length; i++) {
            var tempMidString = "";
            for (var j=0; j < midStringLen; j++) { tempMidString += midStrings[i]; }
            if (fromString.indexOf(tempMidString) == -1) {
               midString = tempMidString;
               i = midStrings.length + 1;
            }
         }
      } // Keep on going until we build an "inbetween" string that doesn't exist
      // Now go through and do two replaces - first, replace the "fromString" with the "inbetween" string
      while (temp.indexOf(fromString) != -1) {
         var toTheLeft = temp.substring(0, temp.indexOf(fromString));
         var toTheRight = temp.substring(temp.indexOf(fromString)+fromString.length, temp.length);
         temp = toTheLeft + midString + toTheRight;
      }
      // Next, replace the "inbetween" string with the "toString"
      while (temp.indexOf(midString) != -1) {
         var toTheLeft = temp.substring(0, temp.indexOf(midString));
         var toTheRight = temp.substring(temp.indexOf(midString)+midString.length, temp.length);
         temp = toTheLeft + toString + toTheRight;
      }
   } // Ends the check to see if the string being replaced is part of the replacement string or not
   return temp; // Send the updated string back to the user
} // Ends the "replaceSubstring" function

function isValidChar(str,par_invalidChars){
	var invalidChars = " ~\'^\`\"*+=\\|][(){}$&!#%/:,;";
	var ok = true;
	
	if (par_invalidChars != "")
	{
		invalidChars = par_invalidChars
	}
		
	 for (i=0; i<invalidChars.length; i++) {
        badChar = invalidChars.charAt(i);
        if (str.indexOf(badChar,0) > -1) {
			ok = false
        }
    }
	
	return ok;
}

function isEmail(email) {
    invalidChars = " ~\'^\`\"*+=\\|][(){}$&!#%/:,;";
	email = emailStr = trim(email);
    // Check for null
    if (email == "") {
        return false;
    }

    // Check for invalid characters as defined above
    for (i=0; i<invalidChars.length; i++) {
        badChar = invalidChars.charAt(i);
        if (email.indexOf(badChar,0) > -1) {
            return false;
        }
    }
    lengthOfEmail = email.length;
    if ((email.charAt(lengthOfEmail - 1) == ".") || (email.charAt(lengthOfEmail - 2) == ".")) {
        return false;
    }
    Pos = email.indexOf("@",1);
    if (email.charAt(Pos + 1) == ".") {
        return false;
    }
    while ((Pos < lengthOfEmail) && ( Pos != -1)) {
        Pos = email.indexOf(".",Pos);
        if (email.charAt(Pos + 1) == ".") {
            return false;
        }
        if (Pos != -1) {
            Pos++;
        }
    }

    // There must be at least one @ symbol
    atPos = email.indexOf("@",1);
    if (atPos == -1) {
        return false;
    }

    // But only ONE @ symbol
    if (email.indexOf("@",atPos+1) != -1) {
        return false;
    }

    // Also check for at least one period after the @ symbol
    periodPos = email.indexOf(".",atPos);
    if (periodPos == -1) {
        return false;
    }
    if (periodPos+3 > email.length) {
        return false;
    }
    return true;
}

function CheckVeld(Veld, Language)
{
	var bOk = true;
	var Veldwaarde = Veld.value;
	var Veldnaam = Veld.id
	var Verplicht = Veldnaam.substring(Veldnaam.length - 2, Veldnaam.length -1)
	var Actie = Veldnaam.substring(Veldnaam.length - 1, Veldnaam.length)
	Veldnaam = Veldnaam.substring(0, Veldnaam.length - 2)
	
	var melding;
	var meldingleeg = "Veld mag niet leeg blijven"; 
	var meldingnumeric = "Veld dient numerieke waarde te hebben";
	var meldingemail = "Geen geldig emailadres";
	var meldingalgemeen = "Geef geldige waarde voor '";
	
	if (Language.toUpperCase() == 'EN')
	{
		meldingleeg = "Field should not be empty"; 
		meldingnumeric = "Field should have a numeric value"; 
		meldingemail = "No valid emailadress"; 
		var meldingalgemeen = "Give valid value for '";
	}
    
    //Check host url for localizing
    if((window.location.hostname.split("meinung")).length > 1)
	{
		meldingleeg = "Field should not be empty"; 
		meldingnumeric = "Field should have a numeric value"; 
		meldingemail = "No valid emailadress"; 
		var meldingalgemeen = "Give valid value for '";
	}   
	
	if (Verplicht == 1 && Veldwaarde == "") 
	{	
			bOk = false;
			melding = meldingleeg;
	}		
	else
	{
		switch (Actie)
		{
			case '1' : 
				if (Number(Veldwaarde) != Veldwaarde) 
				{
					bOk = false;
					melding = meldingnumeric;
				}
				break;
			case '2' : 
				Veldwaarde = Veldwaarde.replace(/^\s*|\s*$/g,"");
                if((window.location.hostname.split("meinung")).length > 1)
                {
                    regex= 			/^[a-zA-Z0-9_öäüß]+([-+.][a-zA-Z0-9_öäüß]+)*@[a-zA-Z0-9_öäüß]+([-.][a-zA-Z0-9_öäüß]+)*\.[a-zA-Z0-9_öäüß]+([-.][a-zA-Z0-9_öäüß]+)*$/;
                }
                else
                {	
					regex=/^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/;
                }
				//regex=/^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3}|[0-9]{1,3})(\]?)$/;
				if (!regex.exec(Veldwaarde))
				{	
					bOk = false;						
					melding = meldingemail;
				}
				break;
			case '3' :
            	if((window.location.hostname.split("meinung")).length > 1)
                {
                	regex=/^[öäüßa-zA-Z''-'\s]{1,255}$/;
                }
                else
                {
					regex=/^[a-zA-Z''-'\s]{1,255}$/;
                }
				if (!regex.exec(Veldwaarde))
				{	
					melding="";
					bOk = false;		
				}
				break;				
		}

	}
	if (bOk == false)
	{	
		alert (meldingalgemeen + Veldnaam + "'\n" + melding);
		try
		{
			Veld.focus()
		}
		catch(e)
		{
			//niets doen
		}
		finally
		{
			//niets doen
		}		
	}	
	return bOk;
}	


function ValidateRadioButton(btnGroup, btnGroupName) 
{
    var cnt = -1;
    var bOk = false;
    for (var i=btnGroup.length-1; i > -1; i--) 
    {
        if (btnGroup[i].checked)
        {
          cnt = i; 
          i = -1;
        }
    }
    if (cnt > -1)
    {
      value = btnGroup[cnt].value;
      bOk = true;
    }
	if (bOk==false)
	{
    	if((window.location.hostname.split("meinung")).length > 1)
        {
    		alert("keine Option eingegeben für '" + btnGroupName + "'");
        }
	 	else
        {
        	alert("Geen optie ingevuld voor '" + btnGroupName + "'");
        }
	}
    return bOk;
  }

function CheckAndSubmit(language, form)
{
	Disable(form.name,true);
	var bOk = true;
	var lengte = document.forms[form.name].elements.length
	for (var i = 0; i < lengte; i++) 
    {
		var control = document.forms[form.name].elements[i]
		//snel even controle op radio ingebouwd - is lelijk
		if(control.type=="radio")
		{
		    var radioGroup;
			eval("radioGroup=document."+form.name+"."+control.name);
			if (radioGroup!=null)
			{
				bOk = ValidateRadioButton(radioGroup, control.id);
				if (bOk==false)
				{
						i = lengte + 1;
				}
		    }
		}
		else
		{
		  if(!CheckVeld(control,language))
		  {
	          bOk = false;
			  i = lengte + 1;
		  }			
		}
    }
  	if (bOk)
    {
		form.submit();
    }
    else
		Disable(form.name,false);
}      

function Disable(formname,bool)
{
	try
	{
		document.forms[formname].elements["Submit"].disabled = bool;
	}
	catch(e)
	{
		//niets doen
	}
	finally
	{
		//niets doen
	}		
}