function color(x)
{
	y = x-1;
	kleuren=["#557799","#5e7f9f","#6787a5","#708fab","#7997b1","#829fb7","#8ba7bd","#94afc3","#9db7c9","#a6bfcf","#afc7d5"];

	k = 0;
	for(x;x<6;x++)
	{
		document.getElementById("m"+x).style.backgroundColor = kleuren[k];
		k = k+2;
	}

	k = 2;
	for(y;y>=0;y--)
	{
		document.getElementById("m"+y).style.backgroundColor = kleuren[k];
		k = k+2;
	}
}

function goToURL(url) { document.location = url; }

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function ctformcheck(lang)
{
	var frm = document.contactform;
	var firstname = trim(frm.voornaam.value);
	var lastname = trim(frm.achternaam.value);
	var phone = trim(frm.tel.value);
	var fax = trim(frm.fax.value);
	var email = trim(frm.email.value);
	
	if (lang=="nl" || lang=="NL") {
		var error1="Gelieve alle verplichte velden in te vullen!";
		var error2="Gelieve een correct e-mail adres in te geven!";
		var error3="Het telefoon- of faxnummer moet numeriek zijn!";
	} else {
		var error1="Veuillez remplir tous champs obligatoires!";
		var error2="Veuillez remplir une adresse e-mail correct!";
		var error3="Le numéro de telephone ou de faxe doit-être numérique!";
	}
	if (firstname=="" || lastname=="" || phone=="" || email=="")
	{	  
		alert(error1);
		return false
	} 

	if (!IsNumeric(phone) || !IsNumeric(fax))
	{	  
		alert(error3);
		return false
	} 
	
	if (frm.email.value!="")
	{
		if (frm.email.value.indexOf("@")==-1 || frm.email.value.indexOf(".")==-1 || frm.email.value.indexOf(" ")!=-1 || frm.email.value.length<6) 
		{
		  alert(error2);
		  frm.email.focus();
		  return false
		}
	}
}

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 IsNumeric(sText)
{
	var ValidChars = " 0123456789./-";
	var IsNumber=true;
	var Char;
	
	for (i = 0; i < sText.length && IsNumber == true; i++) { 
		Char = sText.charAt(i); 
		if (ValidChars.indexOf(Char) == -1) {
			IsNumber = false;
		}
	}
	return IsNumber;
}

function ToggleOn(szDivID) {
  if (document.layers) { // NN4+
    document.layers[szDivID].visibility = "show";
    document.layers[szDivID].display = "inline";
  } else if (document.getElementById) { // gecko(NN6) + IE 5+
    var obj = document.getElementById(szDivID);
    obj.style.visibility = "visible";
    obj.style.display = "inline";
  } else if (document.all) { // IE 4
    document.all[szDivID].style.visibility = "visible";
    document.all[szDivID].style.display = "inline";
  }
}

function ToggleOffBusy(szDivID) {
  if (document.layers) { // NN4+
      document.layers[szDivID].visibility = "hide";
      document.layers[szDivID].display = "none";
  } else if (document.getElementById) { // gecko(NN6) + IE 5+
    var obj = document.getElementById(szDivID);
      obj.style.visibility = "hidden";
      obj.style.display = "none";
  } else if (document.all) { // IE 4
      document.all[szDivID].style.visibility = "hidden";
      document.all[szDivID].style.display = "none";
  }
}

function toggleBox(szDivID)
{
	if (document.layers)
	{ // NN4+
		if (document.layers[szDivID].visibility == 'visible')
		{
			document.layers[szDivID].visibility = "hide";
			document.layers[szDivID].display = "none";
			//document.layers[szDivID+"SD"].fontWeight = "normal";
		}
    		else
		{
	    		document.layers[szDivID].visibility = "show";
      		document.layers[szDivID].display = "inline";
      		//document.layers[szDivID+"SD"].fontWeight = "bold";
		}
 	}
	 else if (document.getElementById)
	 { // gecko(NN6) + IE 5+
	 	var obj = document.getElementById(szDivID);
	    	//var objSD = document.getElementById(szDivID+"SD");
		if (obj.style.visibility == 'visible')
		{
			obj.style.visibility = "hidden";
	      	obj.style.display = "none";
	      	//objSD.style.fontWeight = "normal";
	    	}
	    	else
	    	{
	      	obj.style.visibility = "visible";
	      	obj.style.display = "inline";
	      	//objSD.style.fontWeight = "bold";
	    }
	  }
	  else if (document.all)
	  { // IE 4
		if (document.all[szDivID].style.visibility == 'visible')
		{
			document.all[szDivID].style.visibility = "hidden";
	      	document.all[szDivID].style.display = "none";
	      	//document.all[szDivID+"SD"].style.fontWeight = "normal";
	    	}
	    	else
	    	{
	    		document.all[szDivID].style.visibility = "visible";
	      	document.all[szDivID].style.display = "inline";
	      	//document.all[szDivID+"SD"].style.fontWeight = "bold";
	    	}
	}
	
	zetAllemaalAf(szDivID);
}

function zetAllemaalAf(ID)
{
	for(i=-11;i<=11;i++)
	{
		if(ID!=('id'+i) && document.getElementById('id'+i))
		{
			if (document.layers)
			{ // NN4+
				document.layers['id'+i].visibility = "hide";
				document.layers['id'+i].display = "none";
		 	}
			 else if (document.getElementById)
			 { // gecko(NN6) + IE 5+
			 	var obj = document.getElementById('id'+i);
				obj.style.visibility = "hidden";
		      	obj.style.display = "none";
			  }
			  else if (document.all)
			  { // IE 4
				document.all['id'+i].style.visibility = "hidden";
		      	document.all['id'+i].style.display = "none";
			}
		}
	}
}