function checkform(form) {
    for (var x=0; form.elements[x]; x++ ) {
        if (form.elements[x].value == ""){
            if(form.elements[x].className != "nocheck") {
            alert( "U bent iets vergeten in te vullen!" );
            form.elements[x].focus();
            return false ;
            }
        }
    }       
}

$(document).ready(function() { 
	$("a.fancybox").fancybox({
	'padding' : 0,
	'overlayOpacity' : 0.75,
	'showCloseButton' : false
	}); 
	
	$("#close").click(function(event)
	{
		event.preventDefault();
  		$("#popup").fadeOut('slow');
	});
	
	//Set Default State of each portfolio piece
	$(".paging").show();
	$(".paging a:first").addClass("active");
		
	//Get size of images, how many there are, then determin the size of the image reel.
	var imageWidth = $(".window").width();
	var imageSum = $(".image_reel img").size();
	var imageReelWidth = imageWidth * imageSum;
	
	//Adjust the image reel to its new size
	$(".image_reel").css({'width' : imageReelWidth});
	
	//Paging + Slider Function
	rotate = function(){	
		var triggerID = $active.attr("rel") - 1; //Get number of times to slide
		var image_reelPosition = triggerID * imageWidth; //Determines the distance the image reel needs to slide

		$(".paging a").removeClass('active'); //Remove all active class
		$active.addClass('active'); //Add active class (the $active is declared in the rotateSwitch function)
		
		//Slider Animation
		$(".image_reel").animate({ 
			left: -image_reelPosition
		}, 500 );
		
	}; 
	
	//Rotation + Timing Event
	rotateSwitch = function(){		
		play = setInterval(function(){ //Set timer - this will repeat itself every 3 seconds
			$active = $('.paging a.active').next();
			if ( $active.length === 0) { //If paging reaches the end...
				$active = $('.paging a:first'); //go back to first
			}
			rotate(); //Trigger the paging and slider function
		}, 3000); //Timer speed in milliseconds (3 seconds)
	};
	
	rotateSwitch(); //Run function on launch
	
	//On Hover
	$(".image_reel a").hover(function() {
		clearInterval(play); //Stop the rotation
	}, function() {
		rotateSwitch(); //Resume rotation
	});	
	
	//On Click
	$(".paging a").click(function() {	
		$active = $(this); //Activate the clicked paging
		//Reset Timer
		clearInterval(play); //Stop the rotation
		rotate(); //Trigger rotation immediately
		rotateSwitch(); // Resume rotation
		return false; //Prevent browser jump to link anchor
	});
	
	/* KOLOM 3 // MEER INFO */
	$(".meerinfo").click(function(event) {
		event.preventDefault();
		var wat = $(this).attr('rel');
		$("."+wat).slideDown('slow');	
		$(this).fadeOut();
	});
	
	$(".sluit").click(function(event) {
		event.preventDefault();
		var wat = $(this).attr('rel');
		$("."+wat).slideUp('slow');	
		$("#"+wat).fadeIn();
	});
	
	/* ACCORDION */
	$('#accordion dd').hide();
       $('#accordion dt .click').click(function(event){
       		event.preventDefault();
       			if ($(this).parent().hasClass('actief'))
       			{
       				$('#accordion dd').slideUp();
	                $(this).parent().removeClass('actief');	
       			}
       			else
       			{
	               $('#accordion dd').slideUp();
	               $('#accordion dt').removeClass('actief');
	               $(this).parent().addClass('actief');
	               $(this).parent().next().slideDown();
       			}
       });


});