var lastpage = "";
function loadURL(page,get) 
{   
	var rand = Math.floor(Math.random()*10000);
	if(get)
	{
		var getURL = page + ".php?get=" + get + "&" + rand;
	}
	else
	{
		var getURL = page + ".php?" + 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);
	  	xmlhttp.send();
	}
	document.getElementById('content').innerHTML = xmlhttp.responseText;
	
	var contH = 0;
	var docH  = 0;
	var newT  = 0; 
	document.getElementById('main_container').style.top = '0px';                 
	
	$.getDocHeight = function()
	{
    	var D = document;
     	return Math.max(Math.max(D.body.scrollHeight,    
     	D.documentElement.scrollHeight), 
     	Math.max(D.body.offsetHeight, D.documentElement.offsetHeight), 
     	Math.max(D.body.clientHeight, D.documentElement.clientHeight));
	};
	
	$("#content_container").resize() 
	{
		contH = $("#content_container").height() + 116 + 75 + 18; 
		docH  = $.getDocHeight(); 
		newT  = Math.floor((docH-contH)/2); 
	};
	
 	//alert(docH   + ' - ' + contH + ' - ' + newT);	
	if(contH != docH)
	{	
		document.getElementById('main_container').style.top = newT+'px';
	}
	// Activeer lightbox
	$('a.lb').lightBox();
   	
	$('div.menu_item').hover
	(
		function ()
		{
			$(this.firstChild).css('color','#eaaf0f');
			$(this).css('background-image','url(images/button.png)');
		},	  
		function ()
		{
			if(this.firstChild.id != page && this.firstChild.id != lastpage)
			{
				$(this.firstChild).css('color','#fff');
				$(this).css('background-image','');
			}
		}
  	);
  	
  	$('tr.projecten').hover
	(
		function (){$(this).css('color','#eaaf0f');$(this).css('cursor','pointer');}, 
  		function (){$(this).css('color','#fff');}
  	);
  	/*
  	$('td a').hover
	(
		function (){$(this).css('color','#eaaf0f');$(this).css('cursor','pointer');}, 
  		function (){$(this).css('color','#fff');}
  	);
  	*/
  	if(lastpage)
  	{
	  	document.getElementById(lastpage).style.color = '#fff';
	  	document.getElementById(lastpage).parentNode.style.backgroundImage = '';	
	}	
	document.getElementById(page).style.color = '#eaaf0f';
	document.getElementById(page).parentNode.style.backgroundImage = 'url(images/button.png)';	  		
	lastpage = page;
}

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');
	}
}