/*
 
Correctly handle PNG transparency in Win IE 5.5 & 6.
http://homepage.ntlworld.com/bobosola. Updated 18-Jan-2006.

Use in <HEAD> with DEFER keyword wrapped in conditional comments:
<!--[if lt IE 7]>
<script defer type="text/javascript" src="pngfix.js"></script>
<![endif]-->

*/
function png_fix(){
	var arVersion = navigator.appVersion.split("MSIE")
	var version = parseFloat(arVersion[1])

	if ((version >= 5.5)  && (document.body.filters)) 
	{
	   for(var i=0; i<document.images.length; i++)
	   {
	      var img = document.images[i]
	      var imgName = img.src.toUpperCase()
	      if (imgName.substring(imgName.length-3, imgName.length) == "PNG")
	      {
	         var imgID = (img.id) ? "id='" + img.id + "' " : ""
	         var imgClass = (img.className) ? "class='" + img.className + "' " : ""
	         var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' "
	         var imgStyle = "display:inline-block;" + img.style.cssText 
	         if (img.align == "left") imgStyle = "float:left;" + imgStyle
	         if (img.align == "right") imgStyle = "float:right;" + imgStyle
	         if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle
	         var strNewHTML = "<span " + imgID + imgClass + imgTitle
	         + " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
	         + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
	         + "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>" 
	         img.outerHTML = strNewHTML
	         i = i-1
	      }
	   }
	}
}

function check (url, type){
	var string;
	string = "Weet u zeker dat u ";
	switch (type)
	{
		case 'foto':
			string = string + "deze foto";
			break;
		case 'album':
			string = string + "dit album";
			break;
		case 'user':
			$string = string + "deze gebruiker";
		default:
			string = string + "dit item";
	}
	string = string + " wilt verwijderen?";
	if (confirm(string)){
		if (url.length > 1)
			location.href=url;
	}
}

$(document).ready(function() { 
	$('ul#menu').superfish({speed:'fast', autoArrows: false,dropShadows: false});
	$('a.lightbox').lightBox({
			imageLoading: '/images/style/lightbox/loading.gif',
			imageBtnClose: '/images/style/lightbox/close.gif',
			imageBtnPrev: '/images/style/lightbox/prev.gif',
			imageBtnNext: '/images/style/lightbox/next.gif'
	});
	if ($('#inschrijfform'))
	{
		$('#inschrijfform tr:has(input[name="email"])').remove();
		$("#inschrijfform input[name='Accepteerd_regelement']").click(function(){
			if ($(this).attr('checked'))
			{
				$("#inschrijfform input[type='submit']").css('visibility','visible');
			}
			else
			{
				$("#inschrijfform input[type='submit']").css('visibility','hidden');
			}
		});
	}
});

function check_inschrijfform()
{
	$("#inschrijfform input[type='submit']").attr('disabled','disabled');
	pass = true
	if ($('#inschrijfform input[name="Accepteerd_regelement"]').attr('checked') == false)
	{
		pass = false
	}
	
	var last_radio = '';
	var last_check = false;
	// alle velden leeghalen
	$("#inschrijfform input").parent().removeClass('invalid');
	$("#inschrijfform input:not(name='Naam_trekker')").each(function(i){
		if($(this).attr('type') == 'text')
		{
			if (empty($(this).attr('value')))
			{
				pass = false;
				$(this).parent().addClass('invalid');
				alert($(this).attr('name'));
			}
		}
		else if($(this).attr('type') == 'radio')
		{
			if (last_radio != $(this).attr('name'))
			{
				if (last_check == false && last_radio != '')
				{
					pass = false;
					alert($(this).attr('name'));
					$("#inschrijfform input[name='"+last_radio+"']").parent().addClass('invalid');
				}
				last_radio = $(this).attr('name');
				last_check = false;
			}
			if($(this).attr('checked'))
			{
				last_check = true;
			}
		}
	});
	// laatste radio toch nog even checken
	if (last_check == false && last_radio != '')
	{
		pass = false;
		alert($("#inschrijfform input[name='"+last_radio+"']").attr('name'));
		$("#inschrijfform input[name='"+last_radio+"']").parent().addClass('invalid');
		 
	}
	
	if (pass == false)
	{
		alert('Controleer de velden met een rode rand, deze moeten ingevult/aangevinkt zijn.');
		$("#inschrijfform input[type='submit']").removeAttr('disabled');
	}
	else
	{
		$('#inschrijfform').append('<input type="hidden" name="javascript_checked" value="true" />');
		$('#inschrijfform').submit();
	}
	
	return pass;		
}

function empty( mixed_var ) {
    var key;
    
    if (mixed_var === ""
        || mixed_var === 0
        || mixed_var === "0"
        || mixed_var === null
        || mixed_var === false
        || mixed_var === undefined
    ){
        return true;
    }
    if (typeof mixed_var == 'object') {
        for (key in mixed_var) {
            if (typeof mixed_var[key] !== 'function' ) {
              return false;
            }
        }
        return true;
    }
    return false;
}

