// browser detect //

var dom = (document.getElementById)? true:false;
var ie4 = (document.all && !dom)? true:false;
var ns = (document.layers)? true:false;


// crossbrowser layer //

function zoekLayer(id) {
	if (dom) { var layer = document.getElementById(id); }
	else if (ns4) { var layer = document.layers[id]; }
	else if (ie4) { var layer = document.all[id]; }

	return layer;
}



function SwitchMenu(obj, obj2){

	var el = zoekLayer(obj + "menu");
	var el2 = zoekLayer(obj2 + "menu");
			el.style.display = "block";
			el2.style.display = "none";

}


function sponsorInfo(tekst, slink, info, uid) {

	zoekLayer('sponsor_naam').innerHTML = tekst;
	if((slink == "") & (info == "")) {
		zoekLayer('sponsor_link').innerHTML = '';
	}
	else if((slink == "") & (info != "")) {
		zoekLayer('sponsor_link').innerHTML = 'informatie';
	} 
	else if((slink != "") & (info == "")) {
		zoekLayer('sponsor_link').innerHTML = 'website';
	} else { 
		var delink = "http://" + slink;
		zoekLayer('sponsor_link').innerHTML = "<a href=\"http://" + slink + "\" target=\"sponsor\" onClick=\"newWindow('" + slink + "'); return false\">website</a> | informatie";
	}

	var x = zoekLayer('contentscroll');
	var imgs = x.getElementsByTagName("a"); 
	var nCount = imgs.length;

	for(var i=0; i<imgs.length; ++i) {
		imgs[i].className = 'niks';
	}

	var did = "a" + uid;
	zoekLayer(did).className = 'sponsoraan';


	return false;
}



function newWindow(newContent) {
	var newlink = "http://" + newContent;
	winContent = window.open(newlink, 'sponsor', 'left=200,top=80,width=800,height=600,toolbar=yes,location=1,menubar=yes,scrollbars=yes,resizable=yes');

	winContent.focus();
}


function smallWindow(newContent) {
	winContent = window.open(newContent, 'afbeelding', 'left=200,top=80,width=800,height=600,toolbar=no,location=0,menubar=no,scrollbars=yes,resizable=yes');

	winContent.focus();
}



function changeFormbutton() {
	document.getElementById('formzendknop3').style.background = 'url(http://amiengo.artright.nl/v1/img/zendenaanuit2.png) no-repeat -136px 0';
}

function changeFormbutton2() {
	document.getElementById('formopslaanknop').style.background = 'url(http://amiengo.artright.nl/v1/img/opslaanaanuit.png) no-repeat -68px 0';
}


function setfocus(objectid) { 
	if(document.getElementById(objectid)) { 
		document.getElementById(objectid).focus(); 
	} 
}