var cssdir = "/css/";
var cssversie = "wijntip_";
if(navigator.appName == "Microsoft Internet Explorer")
{
	cssversie = cssversie + "ie.css";
}
else
{
	cssversie = cssversie + "ff.css";
}
document.write("<link rel=\"stylesheet\" type=\"text/css\" href=\"" + cssdir + cssversie + "\">");

function verzenden(actie)
{
	document.forms[0].action2.value = actie;
	document.forms[0].submit();
}

function popup_afsluiten()
{
	window.close();
}

function open_menu(menunr)
{
	document.forms[0].action2.value = 'open_menu';
	document.forms[0].menunr.value = menunr;
	ajax_post('divInhoud', 'action2&menunr', 'index.php');
}

function bepaal_positie(objid)
{
	var obj = document.getElementById(objid);
	var posleft = 0;
	var postop = 0;

	if(obj.offsetParent)
	{
		do
		{
			posleft += obj.offsetLeft;
			postop += obj.offsetTop;
		}
		while(obj = obj.offsetParent);
	}

	return [posleft, postop];
}

function handleEnter(e, functie)
{
	var charCode;
	if(e && e.which)
	{
		charCode = e.which;
	}
	else if(window.event)
	{
		e = window.event;
		charCode = e.keyCode;
	}

	if(charCode == 13)
	{
		eval(functie);
	}
}

function httprequest()
{
	var xmlHttp;
	
	try
	{
		xmlHttp = new XMLHttpRequest();
	}
	catch(e)
	{
		try
		{
			xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch(e)
		{
			try
			{
				xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch(e)
			{
				alert("Uw browser ondersteunt AJAX niet.");
				return false;
			}
		}
	}
	
	return xmlHttp;
}

function ajax_post(divnaam, parameters, url)
{
	var postparams = parameters;
	var postparams_split = postparams.split("&");
	var params = "";
	var scheiding = "&";
	
	for(var t = 0; t < postparams_split.length; t++)
	{
		if(t == (postparams_split.length - 1)) {scheiding = "";}
		var param = $("#"+postparams_split[t]).serialize();
		params = params.concat(param, scheiding);
	}
	
	$.post(url, params, 
	function(data)
	{
		if(data.length > 0)
		{
			$('#'+divnaam).html(data);
		}
	});
}

function nieuwScherm(url, venster, schermbreedte, schermhoogte)
{
	var horizontaal = (screen.availWidth - schermbreedte) / 2;
	var verticaal = (screen.availHeight - schermhoogte) / 2;
	
	var objScherm = window.open(url, venster, 'fullscreen=no,scrollbars=yes,resizable=yes,width=' + schermbreedte + ',height=' + schermhoogte + ',left=' + horizontaal + ',top=' + verticaal);
	objScherm.focus();
}

function selecteer_rij(rij, rijnr, action, defaultClass, pointerClass)
{
	var velden = null;
	
	if(typeof(document.getElementsByTagName) != 'undefined')
	{
		velden = rij.getElementsByTagName('td');
	}
	else if(typeof(rij.cells) != 'undefined')
	{
		velden = rij.cells;
	}
	
	var aantalVelden = velden.length;
	var c = null;
	
	for(c = 0; c < aantalVelden; c++)
	{
		var idnr = rijnr + '_' + c;
		if(action == 'over')
		{
			document.getElementById(idnr).className = pointerClass;
		}
		else if(action == 'out')
		{
			document.getElementById(idnr).className = defaultClass;
		}
	}
}