function validate_required(field,alerttxt) {
 with (field) {
  if (value==null||value=="")
    {alert(alerttxt);return false;}
  else {return true}
 }
}

function validate_form(thisform) {
 with (thisform) {
  if (validate_required(ep_username,"Vul uw gebruikersnaam in.")==false)
    {ep_username.focus();return false;}
  if (validate_required(ep_userpass,"Vul uw wachtwoord in.")==false)
    {ep_userpass.focus();return false;}
 }
}

function ShowLogin(a) {
	document.getElementById('aep_win').style.width='350px';
	document.getElementById('aep_w').style.backgroundColor='#95AA8F';
	height=GetSize('h');
	var ScrollTop = window.pageYOffset || document.documentElement.scrollTop || 0; 
	ScrollTop=ScrollTop+((height/2)-100);
	marg= ScrollTop + 'px auto 0 auto';
	document.getElementById('aep_win').style.margin=marg;
	document.getElementById('aep_w').innerHTML='<p>Inloggen</p><form action="http://www.kina.nl/eplogin.php" method="post" onsubmit="return validate_form(this)"><table border="0"><tbody><tr><td>gebruikersnaam:</td><td><input name="ep_username" type="text" /></td></tr><tr><td>wachtwoord:</td><td><input name="ep_userpass" type="password" /></td></tr><tr><td><input name="lng" type="hidden" value="nl" /><input id="sid" name="sid" type="hidden" value="" /></td><td><input style="width:60px;" name="submit" type="submit" value="Inloggen" />&nbsp;<input style="width:60px;" onclick="javascript:ae_clk(\'\');" type="button" value="Annuleer" /></td></tr></tbody></table></form><div id="loginerror"></div><p><a href="http://www.kina.nl/nl/contact/registreren/">registreren?</a><br /><a href="http://www.kina.nl/nl/contact/wachtwoord-vergeten/">wachtwoord vergeten?</a></p>';
	document.getElementById('sid').value=a;
	ae_prompt(a_ShowLogin);
	document.getElementById('ep_username').focus();
}

function a_ShowLogin(){};

function ShowLogin2() {
	href = window.location.pathname;
	document.getElementById('aep_win').style.width='350px';
	height=GetSize('h');
	var ScrollTop = window.pageYOffset || document.documentElement.scrollTop || 0; 
	ScrollTop=ScrollTop+((height/2)-100);
	marg= ScrollTop + 'px auto 0 auto';
	document.getElementById('aep_win').style.margin=marg;
	document.getElementById('aep_w').innerHTML='<p><a href="javascript:ae_clk(\'\');" style="float: right; margin-right: 10px;"><img src="images/ep/close.gif" alt="close"></a></p><p>Deze optie is uitsluitend toegankelijk voor geregistreerde gebruikers.</p><p><a href="/nl/inloggen/?q='+href+'" >Inloggen</a> of <a href="nl/registreren/" >Registreren</a></p>';
	ae_prompt(a_ShowLogin);
}