var lastpage = "";
function loadURL(menuId,page,get) 
{                    
	//alert(menuId);
	var rand = Math.floor(Math.random()*10000);
	if(get)
	{
		var getURL = page + "?" + get + "&" + rand;
	}
	else
	{
		var getURL = page + "?" + rand;		
	}
	//alert(getURL);
	
	if (window.XMLHttpRequest)
	{
		// code for IE7+, Firefox, Chrome, Opera, Safari
	  	xmlHttp=new XMLHttpRequest();
	  	xmlHttp.open('GET',getURL,false);
	  	xmlHttp.send(null);
	}
	else
	{
		// code for IE6, IE5
	 	xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
	  	xmlHttp.open('GET',getURL,false);
	  	xmlHhttp.send();
	}
	// check of er images zijn
	var arrRespons = xmlHttp.responseText.split("@split@");
		
	if(arrRespons[1] != "")
	{
		document.getElementById('content').style.height           = '285px'; /* 450 - 165 */
		document.getElementById('container_content').style.height = '275px'; /* 440 - 165 */ 
		document.getElementById('track').style.height             = '253px'; /* 418 - 165 */
		document.getElementById('buttonDown').style.top           = '270px'; /* 435 - 165 */
		document.getElementById('images').style.height            = '165px';			
	}
	else
	{
		document.getElementById('content').style.height           = '450px';
		document.getElementById('container_content').style.height = '440px';
		document.getElementById('track').style.height             = '418px';
		document.getElementById('buttonDown').style.top           = '435px';
		document.getElementById('images').style.height            = '0px';		
	}
	document.getElementById('page').innerHTML   = arrRespons[0];	
	document.getElementById('images').innerHTML = arrRespons[1];		
	
	// Menu acties
	for(i=1;i<9;i++){document.getElementById('menu'+i).firstChild.style.color = '#447dd4';}
	document.getElementById(menuId).firstChild.style.color = '#4a4949';
	
	// Activeer scrollbar
	init_dw_Scroll(); 
	
	// Activeer lightbox
	$('a.lb').lightBox();
	
}

function checkMail()
{
	var name  = document.forms[0].name.value;
	var email = document.forms[0].email.value;
	var vraag = document.forms[0].vraag.value;
	var nieuwsbrief = "";	
	document.forms[0].nieuwsbrief.checked == true ? nieuwsbrief = "ja" : nieuwsbrief = "nee";	
	
	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
	
	if(name == ""){alert("U heeft geen naam ingevuld.");return false;}
	else if (!filter.test(email)){alert("Uw emailadres is niet geldig.");return false;}
	else if(vraag == ""){alert("U heeft geen reactie ingevuld.");return false;}
	else
	{
		strGET = "name="+name+"&email="+email+"&vraag="+vraag+"&nieuwsbrief="+nieuwsbrief;
		loadURL(201,'mail/send.php');
	}
}