function showsubscribeform() {
	$('#unsubscribeform').css('display','none');
	$('#subscribeform').css('display','block');
	alignem();
}
function nlsubscribe(theform) {
	theform.act.value = 'nlsubscribe';
	var str = $("#"+theform.id).serialize();
	$.ajax({
		data	: str,
		success	: function(thedata) {
			if (thedata.err) {
				alert(thedata.err);
			}
			else {
				alert(thedata.dat);
				theform.reset();
			}
		}
	});
	
}
function alignem() {
	var cH = $('#content').attr('offsetHeight');
	var minCH = $(window).height() - 27 - 32;
	if (origCH < minCH) {
		$('#content').css('height', minCH);
	}
	$('#tabright').css('height', minCH);
	$('#left').css('height',Math.max($(window).height(),(cH+59)));
//	$('#left').css('height',Math.max($(window).height(),(cH+60)));
	$('#tabright').css('height',parseInt($('#left').css('height'),10)-60);
	$('#content').css('width', $(window).width()-210-34-22);
	if ($(window).width() < (210+650+34+22)) {
		$('#tabright').css('display','none');
	}
	else {
		$('#tabright').css('display','inline');
	}
}
function dopager(link,galid) {
	$(link).parent().find('a.pagernr').removeClass('pagernrselected');
	$(link).addClass('pagernrselected');
	$('#gal_'+galid).attr('src',link);
	// pagernr_[galeryid]_
	var currentlyactiveid = $(link).attr('id').substring(9+(String(galid).length));
	var gallerysize = $(link).parent().find('a.pagernr').length;
	// if the gallery has more than one picture and the current is greater than 1
		// prev should be visible
	if (gallerysize > 1 && currentlyactiveid > 1) {
		$('#pagerprev_'+galid).css('visibility','visible');
	}
	else {
		$('#pagerprev_'+galid).css('visibility','hidden');
	}
	// if the gallery has more than one picture and the current one is not the last one
		// next should be visible
	if (gallerysize > 1 && currentlyactiveid < gallerysize) {
		$('#pagernext_'+galid).css('visibility','visible');
	}
	else {
		$('#pagernext_'+galid).css('visibility','hidden');
	}

	return false;
}
function dopagerprev(galid) {
	var currentlyactiveid = $('#pagerdiv_'+galid + ' .pagernrselected').attr('id').substring(9+(String(galid).length));
	if (currentlyactiveid > 1) {
		// we wanna go to the previous image
		theprev = $('#pagernr_'+galid+'_'+(currentlyactiveid-1))[0];
		dopager(theprev, galid);
	}
}
function dopagernext(galid) {
	var currentlyactiveid = $('#pagerdiv_'+galid + ' .pagernrselected').attr('id').substring(9+(String(galid).length));
	var gallerysize = $('#pagerdiv_'+galid).find('a.pagernr').length;
	if (currentlyactiveid < gallerysize) {
		// we wanna go to the next image
		var nextnr = Number(currentlyactiveid)+1
		thenext = $('#pagernr_'+galid+'_'+nextnr)[0];
		dopager(thenext, galid);
	}
}
function hidedt(dialogid) {
	$('#dt'+dialogid).css('display','none');
	hideresponseform();
}
function dihover(dialogid) {
	if (!isdialogdivdisplayed()) {
		$('.didiv img').css('opacity', '0.25');
		$('#di'+dialogid + ' img').css('opacity', '1.00');
	}
}
function showdialogtexts(dialogid) {
	if (!isdialogdivdisplayed()) {
		$('.dialogtextdiv').css('display','none');
		$('.didiv img').css('opacity', '0.25');
		$('#di'+dialogid + ' img').css('opacity', '1.00');
		$('#dt'+dialogid).fadeIn(800);
		//.css('opacity', '0.80');
//		$('#dt'+dialogid).css('display','block').css('opacity', '0.80');
		$('#dt'+dialogid).css('top', randomtop() + 'px').css('left', randomleft() + 'px');
		$('#dt'+dialogid).draggable({ handle: 'td.dragtd' });
		$('#dt'+dialogid+ ' .scroll-pane').jScrollPane({showArrows:true, scrollbarWidth: 14});
	}
}
function randomtop() {
	return Math.round(-50+(300*Math.random()));
}
function randomleft() {
	return Math.round(-200+(400*Math.random()));
}
function isdialogdivdisplayed() {
	var divarray = getElementsByClassName('dialogtextdiv');
	for (var i = 0; i < divarray.length; i++) {
		if (divarray[i].style.display == 'block') {
			return true;
		}
	}
	return false;
}
function whichdialogdivdisplayed() {
	var divarray = getElementsByClassName('dialogtextdiv');
	for (var i = 0; i < divarray.length; i++) {
		if (divarray[i].style.display == 'block') {
			return divarray[i].id.substr(2);
		}
	}
	return 0;
}
function showcomments(dialogid, langcode) {
	$.ajax({
		data	: 'act=showcomments&dialogid='+dialogid+'&langcode='+langcode,
		success	: function(thedata) {
			if (thedata.err) {
				alert(thedata.err);
			}
			else {
				$('#comments'+dialogid).html(thedata.dat);
				$('#comments'+dialogid).css('display','block');
			}
		}
	});
}
function showresponseform() {
	$('#responseformholder').css('display','block');
}
function hideresponseform() {
	$('#responseformholder').css('display','none');
}
String.prototype.trim = function () {
	return this.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
}
function checkform(theform) {
	var checkmsg = '';
	if (theform.elements['f[response]'].value.trim() == '') {
		checkmsg += "'"+ texts['messageformmsg'] + "' " + texts['messageformnotyetentered'] + "!\n";
	}
	if (theform.elements['f[username]'].value.trim() == '') {
		checkmsg += "'"+ texts['messageformname'] + "' " + texts['messageformnotyetentered'] + "!\n";
	}
	if (theform.elements['f[usercity]'].value.trim() == '') {
		checkmsg += "'"+ texts['messageformcity'] + "' " + texts['messageformnotyetentered'] + "!\n";
	}
//	if (theform.elements['f[useremail]'].value.trim() == '') {
//		checkmsg += "E-mail is nog niet ingevuld!\n";
//	}
	if (theform.elements['captcha'].value.trim() == '') {
		checkmsg += texts['messageformcodetext'] + "!\n";
	}

	if (checkmsg != '') {
		alert(checkmsg);
		return false;
	}
	return true;
}
function sendresponseform(theform) {
	if (! checkform(theform)) return false;
	var dialogid = whichdialogdivdisplayed();
	if (! dialogid || dialogid == 0) return;
	theform.elements['f[dialogid]'].value = dialogid;
	var str = $("#"+theform.id).serialize();
	$.ajax({
		data	: str,
		success	: function(thedata) {
			if (thedata.err) {
				alert(thedata.err);
			}
			else {
				$('#comments'+dialogid).html(thedata.dat);
				$("#showhidecomments"+dialogid).click();
				theform.reset();
				hideresponseform();
				alert(thedata.dat);
			}
		}
	});
}

/*
	Developed by Robert Nyman, http://www.robertnyman.com
	Code/licensing: http://code.google.com/p/getelementsbyclassname/
*/	
var getElementsByClassName = function (className, tag, elm){
	if (document.getElementsByClassName) {
		getElementsByClassName = function (className, tag, elm) {
			elm = elm || document;
			var elements = elm.getElementsByClassName(className),
				nodeName = (tag)? new RegExp("\\b" + tag + "\\b", "i") : null,
				returnElements = [],
				current;
			for(var i=0, il=elements.length; i<il; i+=1){
				current = elements[i];
				if(!nodeName || nodeName.test(current.nodeName)) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	else if (document.evaluate) {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = "",
				xhtmlNamespace = "http://www.w3.org/1999/xhtml",
				namespaceResolver = (document.documentElement.namespaceURI === xhtmlNamespace)? xhtmlNamespace : null,
				returnElements = [],
				elements,
				node;
			for(var j=0, jl=classes.length; j<jl; j+=1){
				classesToCheck += "[contains(concat(' ', @class, ' '), ' " + classes[j] + " ')]";
			}
			try	{
				elements = document.evaluate(".//" + tag + classesToCheck, elm, namespaceResolver, 0, null);
			}
			catch (e) {
				elements = document.evaluate(".//" + tag + classesToCheck, elm, null, 0, null);
			}
			while ((node = elements.iterateNext())) {
				returnElements.push(node);
			}
			return returnElements;
		};
	}
	else {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = [],
				elements = (tag === "*" && elm.all)? elm.all : elm.getElementsByTagName(tag),
				current,
				returnElements = [],
				match;
			for(var k=0, kl=classes.length; k<kl; k+=1){
				classesToCheck.push(new RegExp("(^|\\s)" + classes[k] + "(\\s|$)"));
			}
			for(var l=0, ll=elements.length; l<ll; l+=1){
				current = elements[l];
				match = false;
				for(var m=0, ml=classesToCheck.length; m<ml; m+=1){
					match = classesToCheck[m].test(current.className);
					if (!match) {
						break;
					}
				}
				if (match) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	return getElementsByClassName(className, tag, elm);
};