function addOnload(statement) {
		/*
		 *  Internet Explorer doesn't like this that much
		 */
		var nodeBody = document.getElementsByTagName('body')[0];
		var attrBodyOnload = nodeBody.getAttribute('onload');
		nodeBody.setAttribute('onload', attrBodyOnload + '; ' + statement);
	}
	
	function setOnloadFormFocus(formName, fieldName) {
		var statement = 'document.getElementById(\'' + formName + '\').' + fieldName + '.focus()';
		addOnload(statement);
	}
	
	
	/*
	 *  Ajax, just for the fun of it
	 */
	
	var xmlhttp;
	var url = '?page=ajax';
	var pvId = 0;
	
	function checkInlog(username, password) {
		
		var salt = document.getElementById('salt').value;
		var password_sha1 = hex_sha1(password);
		var response = hex_sha1(password_sha1 + salt);
		
		var params = "username=" + username + "&response=" + response;
		document.forms.login.action = 'javascript: doeNiets()';
		
		xmlhttp = getXMLHttpRequest();
		xmlhttp.onreadystatechange = checkInlogHandler;
		xmlhttp.open('POST', url + '&action=checkLogin', true);
		xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
		xmlhttp.setRequestHeader("Content-length", params.length);
		xmlhttp.setRequestHeader("Connection", "close");
		xmlhttp.send(params);
	}
	
	function checkInlogHandler() {
		if (xmlhttp.readyState == 4) {
			if (xmlhttp.responseText == 'true') {
				document.forms.login.action = '?page=login';
				document.forms.login.submit();
			}
			else {
				alert('Combinatie van wachtwoord en gebruikersnaam ongeldig.');
			}
		}
	}
	
	function deletePageview(id) {
		pvId = id;
		var params = 'id=' + id;
		
		xmlhttp = getXMLHttpRequest();
		xmlhttp.onreadystatechange = deletePageviewHandler;
		xmlhttp.open('GET', url + '&action=deletePageview&' + params, true);
		xmlhttp.send(null);
	}
	
	function deletePageviewHandler() {
		if (xmlhttp.readyState == 4) {
			if (xmlhttp.responseText == 'true') {
				// Gathering elements to remove
				var dt         = document.getElementById('pv_' + pvId);
				var dd_query   = document.getElementById('pv_' + pvId + '_query');
				var dd_ua      = document.getElementById('pv_' + pvId + '_ua');
				var dd_referer = document.getElementById('pv_' + pvId + '_referer');
				// Putting obsolete elements together
				var del = Array(dt, dd_query, dd_ua, dd_referer);
				// Removing pageview from DOM
				for (var i=0; i<del.length; i++) {
					if (del[i] != null)
						del[i].parentNode.removeChild(del[i]);
				}
			}
			else {
				alert('Verwijderen van pageview mislukt.');
			}
		}
	}
	
	function checkHTML(html) {
		var params = "html=" + encodeURIComponent(html);
		document.getElementById('weblieg-reageer').action = 'javascript: doeNiets()';
		
		xmlhttp = getXMLHttpRequest();
		xmlhttp.onreadystatechange = checkHTMLHandler;
		xmlhttp.open('POST', url + '&action=checkHTML', true);
		xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
		xmlhttp.setRequestHeader("Content-length", params.length);
		xmlhttp.setRequestHeader("Connection", "close");
		xmlhttp.send(params);
	}
	
	function checkHTMLHandler() {
		if (xmlhttp.readyState == 4) {
			document.getElementById('weblieg-reageer').action = './?page=weblieg&action=reageren';
			if (xmlhttp.responseText == 'true')
				document.getElementById('weblieg-reageer').submit()
			else
				alert('De HTML in je reactie bevat fouten. Wellicht heb je een element gebruikt dat niet is toegestaan of heb je de regels der well formedness geschonden. HTML 4.01 please, no tricks.')
		}
	}
	
	function checkReageerForm(form) {
		if (!form.naam.value) {
			alert('Reacties zonder naam worden niet geaccepteerd.');
			form.naam.focus();
			return false
		}
		else if (!form.tekst.value) {
			alert('Met een lege reactie kan ik niet uit de voeten, solly de polly.');
			form.tekst.focus();
			return false
		}
		else if (form.html.checked) {
			return checkHTML(form.tekst.value)
		}
	}
	
	function newPageviews(most_recent) {
		var params = 'most_recent=' + encodeURIComponent(most_recent);
		
		xmlhttp = getXMLHttpRequest();
		xmlhttp.onreadystatechange = newPageviewsHandler;
		xmlhttp.open('GET', url + '&action=newPageviews&' + params, true);
		xmlhttp.send(null);
	}
	
	function newPageviewsHandler() {
		if (xmlhttp.readyState == 4) {
			if (xmlhttp.responseText == 'true') {
				window.location.reload();
			}
			else {
				updateTime()
			}
		}
	}
	
	function getXMLHttpRequest() {
		if (window.XMLHttpRequest)
			return new XMLHttpRequest()
		else if (window.ActiveXObject)
			return new ActiveXObject("Microsoft.XMLHTTP")
	}
	
	function updateTime()
	{
		time = getTime()
		document.getElementById('lastPageviewCheck').firstChild.nodeValue = time;
	}
	
	function getTime()
	{
		date = new Date();
		hours   = date.getHours();
		if (hours < 10)
			hours = '0' + hours;
		minutes = date.getMinutes();
		if (minutes < 10)
			minutes = '0' + minutes;
		seconds = date.getSeconds();
		if (seconds < 10)
			seconds = '0' + seconds;
		time = hours + ':' + minutes + ':' + seconds;
		return time
	}
	
	function doeNiets() {}