window.onload = doen;

function doen(){
	if (document.getElementById('peiling') && !document.getElementById('home')){
		createCookie('obv_tab',location.href.toString(), 365);
	}
	if (document.getElementById('home')){
		tmp = readCookie('obv_tab') + '';
		if (tmp.indexOf('/') > 0){location.href = tmp}
	}
}

function zetzoek(wat){
	dz = document.zoekform;
	if (wat == 'catalogus'){dz.target='_top'; dz.action = 'http://bicat.obvenlo.nl/zoeken.htm'}
	if (wat == 'website'){dz.target='_top'; dz.action = '/zoeken'}
	if (wat == 'google'){dz.target='_blank';dz.action = 'http://www.google.nl/search'}
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}