var xmlHttp;
function checkbrowser()
{
	try
	{
		// Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
	}
	catch (e)
	{
		// Internet Explorer
		try
		{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e)
		{
			try
			{
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch (e)
			{
				alert("Your browser does not support AJAX!");
				return false;
			}
		}
	}
}

function do_ajax(ding,actie,id,id2)
{
	checkbrowser();
	
	xmlHttp.onreadystatechange=function()
	{
		if(xmlHttp.readyState==4)
		{
			document.getElementById(ding).innerHTML=xmlHttp.responseText;
			
			if (actie=='showprod')
			{
				document.getElementById(ding).className=ding;
				document.getElementById('overlay').className='overlay';
			}
		}
	}
	
	url="/include/ajax.asp?elem="+ding+"&action="+actie+"&id="+id+"&id2="+id2+"&dtm="+Date();
	
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

function goto(url,id)
{
	window.location=url + id;
}

function closewin(id1,id2)
{
	document.getElementById(id1).className='hidden';
	document.getElementById(id2).className='hidden';
}

function showwin(id1,id2)
{
	document.getElementById(id1).className=id2;
}

function validateForm()
{
var x=document.forms["myForm"]["email"].value;
var atpos=x.indexOf("@");
var dotpos=x.lastIndexOf(".");
if (atpos<1 || dotpos<atpos+2 || dotpos+2>=x.length)
  {
  alert("Dit is geen geldig e-mail adres");
  return false;
  }
  var x=document.forms["myForm"]["email"].value;
if (x==null || x=="")
  {
  alert("Email adres is verplicht");
  return false;
  }
}