/**
 * Macromedia Dreamweaver functions
 */
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) { //v4.01
  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 && d.getElementById) x=d.getElementById(n); return x;
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function MM_displayStatusMsg(msgStr) { //v1.0
  status=msgStr;
  document.MM_returnValue = true;
}

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 MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

	//selects an option with value anOptionValue for radiogroup aradioName
	function setRadioOption(aradioName,anOptionValue)
	{
		var chkArray=MM_findObj(aradioName);
		
		//exception for a single radiobutton (data is stored as value not as array)
		if (chkArray.value!=null)
		{
			if (chkArray.value==anOptionValue)
			{
				chkArray.checked=true;
			}
		}
		
		for (i=0;i<chkArray.length;i++)
		{
			if (chkArray[i].value==anOptionValue)
			{
				chkArray[i].checked=true;
			}
		}
		
	}
		
	//Retrieves the selected values for aradioName, -1 if none selected
	function getSelectedRadio(aradioName)
	{
		var chkArray = MM_findObj(aradioName);
		
		//exception for a single radiobutton
		if ((chkArray.value != null) && (chkArray.checked))
		{
			return chkArray.value;
		}
		
		for (i=0;i<chkArray.length;i++)
		{
			if (chkArray[i].checked)
			{
				return chkArray[i].value;
			}
		}

		return -1;
	}
	
  function unsetRadio(aradioName)
  {
    f=document.forms[0];
    r=f[aradioName];
    //r=MM_findObj(aradioName);
    if (!r.value)
    {
  		for (i=0;i<r.length;i++)
      {		
  		  r[i].checked=false;
  		}  
    }
  }

  function isValidEmail(email) 
  {
    var re = new RegExp("^[0-9a-zA-Z][-_0-9a-zA-Z.]*@[-0-9a-zA-Z.]+[.][a-zA-Z]+$");
    return re.test(email);
  }

	//Pass a form element (not just the name) and a regular expression pattern
	function validateField(formElem,pattern) 
	{
	  var re = new RegExp(pattern);
	  var fv = formElem.value;

	  return re.test(fv);
	}

	//Pass a value and a regular expression pattern
	function validateValue(fv,pattern) 
	{
	  var re = new RegExp(pattern);

	  return re.test(fv);
	}

	function getPatternByName(patternName)
	{
    switch (patternName) {
      case "06nummer":
				return "^06(\\s|-|\\s-\\s)?[0-9]{8}$";
        break;
      case "empty_or_email":
        return "^$|^[0-9a-zA-Z][-_0-9a-zA-Z.]*@[-_0-9a-zA-Z.]+[.][a-zA-Z]+$";
        break;
    	case "empty_or_url":
        return "^$|^http://.{2,}";
        break;
    	case "empty_or_time":
        return "^$|^00:00$|^[012][0-9]:[0-9][0-9]$";
        break;
    	case "empty_or_date":
        return "^$|^0000-00-00$|^[12][0-9]{3}[-][01]?[0-9]-[0-3]?[0-9]$";
        break;
    	case "empty_or_float":
        return "^$|[+-]?[0-9]+([.][0-9]+)?$";
        break;
    	case "notempty":
        return "^.";
        break;
      case "email":
        return "^[0-9a-zA-Z][-_0-9a-zA-Z.]*@[-_0-9a-zA-Z.]+[.][a-zA-Z]+$";
        break;
    	case "pagename":
        return "^[_a-z0-9]{1,50}$";
        break;
    	case "username":
        return "^[_a-z0-9]{1,50}$";
        break;
    	case "pass":
        return "^[a-zA-Z0-9 ]{3,20}$";
        break;
     	//dd-mm-yyyy
     	case "nldate":
        return "^[0-3]?[0-9][-][01]?[0-9][-][12][0-9]{3}$";
        break;
     	//yyyy-mm-dd
     	case "date":
        return "^[12][0-9]{3}[-][01]?[0-9]-[0-3]?[0-9]$";
        break;
    	case "integer":
        return "^[-]?[0-9]+$";
        break;
    	case "posinteger":
        return "^[0-9]+$";
        break;
    	case "float":
        return "^[+-]?[0-9]+([.][0-9]+)?$";
        break;
    	case "nlfloat":
        return "^[+-]?[0-9]+([,][0-9]+)?$";
        break;    	
			case "url":
        return "^http://.{2,}";
        break;    	
    	default: 
     		alert("Unknown validator added to a form element: '" + patternName+"'");
		} 	   
	}
		
	function validateForm(aform)
	{
		var s="";

		//check if form has validator arr
		if (aform.validatorArr)
		{
			
			//Iterate over Form elements
			for (var i=0;i<aform.validatorArr.length;i++)
			{
				eval("var anelem=document.forms."+aform.name+"['"+aform.validatorArr[i][1]+"']");
				var pattern=getPatternByName(aform.validatorArr[i][2]);
				
				if (aform.validatorArr[i][4]=="radio")
				{
					var fv="";

					eval("var chkArray=aform."+aform.validatorArr[i][1]+";");
					
					for (j=0;j<chkArray.length;j++)
					{
						if (chkArray[j].checked)
						{
							fv=chkArray[j].value;
						}
					}

					if (validateValue(fv,pattern) == false)
					{
						s+=aform.validatorArr[i][3]+"\n";
					}	
					
				}
				else
				{	
					if (validateField(anelem,pattern) == false)
					{
						s+=aform.validatorArr[i][3]+"\n";
					}	
				}	
			}	
			
			//Report errors
			if (s!="")
			{
				alert(s);
				return false;
			}	

		}	
		
		return true;
	}
		
	//addValidator("mainform","naam","notempty","Uw naam mag niet leeg zijn.");
	function addValidator(aformname,aformelement,avalidator,anerrormsg)
	{
		eval("var anelem=document.forms."+aformname+"['"+aformelement+"']");
			
		//Radiogroup or a single element
		if (anelem[0])
		{
			atype=anelem[0].type;
		}
		else
		{
			atype=anelem.type;
		}	
		
		//check if validatorArr has been added to the form
		if (!document.forms[aformname].validatorArr)
		{
			document.forms[aformname].validatorArr= new Array();	
		}	
		
		//add new array to a new last position in the array
		document.forms[aformname].validatorArr[document.forms[aformname].validatorArr.length]=
			new Array(aformname,aformelement,avalidator,anerrormsg,atype);
	}
	
	function initForm(formname,formvalues)
	{
		//parse the formdata field
		var formentries=String(formvalues).split("&");

		for (var i=0;i<formentries.length;i++)
		{
			var formentry=String(formentries[i]).split("=");
			
			if ((formentry[0]!=null)&&(formentry[0]!=""))
			{
				eval("var comp=document."+formname+"['"+formentry[0]+"']");
				if ((comp!=null)&&(formentry[1]!=null))
				{
					if ((comp.type=="text")||(comp.type=="textarea"))
					{
						comp.value=unescape(formentry[1]);
					}
					else if (comp.type=="checkbox")
					{
						if (comp.value==formentry[1])
						{
							comp.checked=true;	
						}	
					}
					else if (comp[0].type=="radio")
					{
						initRadio(formname,formentry[0],formentry[1]);
					}
					else if (comp.type=="select-one")
					{
						initSelect(formname,formentry[0],formentry[1]);
					}	
				}
			}	
		}
	}

	function initRadio(formname,obj,v)
	{
		eval("var rd=document.forms['"+formname+"']."+obj);
	
		if (rd==null)
		{
			alert("Error: " + obj + " does not exist on form "+formname+".");
		}
		
		if (rd.length>1)
		{
			for (var i=0; i<rd.length; i++)
			{
				if (rd[i].value==v)
				{
					rd[i].checked=true;
					break;
				}
			}
		}
		else
		{
			//exception for single radiobutton
			if (rd.value==v)
			{
				rd.checked=true;		
			}
		}	
	}
	
	function initSelect(formname,obj,v)
	{
		eval("var rd=document.forms['"+formname+"']."+obj);
		if (rd==null)
		{
			alert("Error: " + obj + " does not exist on form "+formname+".");
		}
		if (rd.length>1)
		{
			for (var i=0; i<rd.length; i++)
			{
				if (rd[i].value==v)
				{
					rd[i].selected=true;		
					break;
				}
			}
		}
		else
		{
			//exception for single radiobutton
			if (rd.value==v)
			{
				rd.selected=true;		
			}
		}
	}