/* XHTML compliant new window link, does not work in IE5.0 */

function externalLinks() {
	if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
   if (anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "external") 
       anchor.target = "_blank";
 }
} 

init = function (){
	externalLinks();
	clearSearchField()
}
window.onload = function() {
		init();	
}

/* show and hide */

function change(id, newClass) {

identity=document.getElementById(id);

identity.className=newClass;
}

/* go to url*/

function MM_goToURL() { //v3.0
  var i, args=MM_goToURL.arguments; document.MM_returnValue = false;
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}

/* popup veld in contactform */

function show_hide_other(selectObj)
{
   other = document.getElementById(selectObj.id);
   if(selectObj.options[selectObj.selectedIndex].value=='') 
   {
      other.style.display='block'
      other.focus();
   } 
   else
   {
      other.style.display='none';
   }   
}

/* Javascript Validate Form function */


function MM_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.name; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' is geen geldig e-mail adres.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' moet uit cijfers bestaan.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' moet een cijfer tussen '+min+' en '+max+' bevatten.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' verplicht in te vullen.\n'; }
  } if (errors) alert('De volgende fout(en) is/zijn opgetreden:\n'+errors);
  document.MM_returnValue = (errors == '');
}

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

/* Contactform send function */

function send()
{
	MM_validateForm('Naam','','R','Email','','RisEmail');
	if(document.MM_returnValue)
	{
		theform=MM_findObj('contactform');
		
		window.theform.submit();

	}
}

/*clear field in form*/
function clearSearchField() {
	var searchField = document.getElementById("email_geboortedatum");
		if(searchField) {
		searchField.onfocus = function() {
			searchField.value = "";
		}
	}
}