function displayform()
{
var lightform=document.getElementById("afspraak");
lightform.style.display='block';
var lightform=document.getElementById("bestel");
lightform.style.display='none';
}


function closeform()
{
var lightform=document.getElementById("afspraak");
lightform.style.display='none';
var lightform=document.getElementById("bestel");
lightform.style.display='none';
}

function displayform1()
{
var lightform=document.getElementById("bestel");
lightform.style.display='block';
var lightform=document.getElementById("afspraak");
lightform.style.display='none';
}


function closeform1()
{
var lightform=document.getElementById("bestel");
lightform.style.display='none';
var lightform=document.getElementById("afspraak");
lightform.style.display='none';
}

/*email validation*/


/***********************************************
* Email Validation script- © Dynamic Drive (www.dynamicdrive.com)
* This notice must stay intact for legal use.
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

var emailfilter=/^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,4}|\d+)$/i

function checkmail(e){
var returnval=emailfilter.test(e.value)
if (returnval==false){
alert("Please enter a valid email address.")
e.select()
}
return returnval
}


function checkmailfrom(e){
var returnval=emailfilter.test(e.value)
if (returnval==false){
alert("Please enter a valid email address.")
e.select()
}
return returnval
}