function swapTextVersion() {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("STYLESHEET") != -1 && a.getAttribute("href")) {
      if(a.href.indexOf("110") != -1) {
	a.href = "/eCache/INT/113.css";
      }
      else {
	if(a.href.indexOf("113") != -1) {
	     a.href = "/eCache/INT/110.css";
	}
      }
    }
  }
}

function checkSendResponseMail(form)
{
	var error;
	error = "";
	if (!checkEmail(form.afzemail.value)) {
		error += "Fout emailadres afzender\n";
	}
	if (form.afznaam.value.length<1) {
		error += "Naam afzender verplicht\n";
	}
	
	if (error == "") {
		form.submit();
	}
	else {
		alert(error);
	}
}

function checkEmail(email)
{
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (filter.test(email)) {
		return true;
	}
	else {
		return false;
	}	
}