sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" ie_does_hover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" ie_does_hover\\b"), "");
		}
	}
}
if (window.attachEvent){
	window.attachEvent("onload", sfHover);
}

function eigClick(isCheck){
	if(isCheck){
		document.getElementById('eigtab').style.display = 'none';
	}else{
		document.getElementById('eigtab').style.display = 'block';
	}
}

function facClick(isCheck){
	if(isCheck){
		document.getElementById('factab').style.display = 'none';
	}else{
		document.getElementById('factab').style.display = 'block';
	}
}

function keuClick(isCheck){
	if(isCheck){
		document.getElementById('keutab').style.display = 'none';
	}else{
		document.getElementById('keutab').style.display = 'block';
	}
}

function chkepcrad(ischecked){
	if(!ischecked){
		for(i=0; i<document.Formmail.rad_opt.length; i++){
			if(document.Formmail.rad_opt[i].checked){
				document.Formmail.rad_opt[i].checked = false;
			}
		}
	}
}

function chkbepc(){
	if(document.Formmail.cb_opmaak_epc.checked == false){
		document.Formmail.cb_opmaak_epc.checked = true;
	}
}