function clearField(field)
{
	if(field.value == "gebruikersnaam" || field.value == "wachtwoord" || field.value == "Uw e-mailadres") { field.value = ""; }
}

function showArticle(id)
{
	//new Effect.SlideUp("rightColumn", {queue: "front"});
	Element.hide("rightColumn");
	eval("new Effect.SlideDown('bericht" + id + "', {queue: 'end'})");
}

function hideArticle(id)
{
	eval("new Effect.Fade('bericht" + id + "', {queue: 'front'})");
	new Effect.Appear("rightColumn", {queue: "end"});
}

function validate(form)
{
	if(form.title.value == '-1')
	{
		alert('Selecteer een vakgebied');
	}
	else if(!validateEmail(form.email))
	{
		alert('Vul een geldig e-mailadres in');
	}
	else
	{
		form.target = '_blanks';
		form.action = 'http://www.mdinfo.nu/dev/mdweeklyform.aspx';
		form.submit();
	}
}

// Mischa Berger, 1-10-2007
// naar Michael Lageman
function validateEmail(field)
{
	str = field.value;

	if (str == null || str == undefined){ return false; }

	if (str.length > 0)
	{
		if (window.RegExp)
		{
			reg1 = new RegExp('(\\s)|(@.*@)|([@_\\-\\.][@_\\-\\.])|(^[@_\\-\\.])|([@_\\-\\.]$)');
			reg2 = new RegExp('^\\w[\\w\\-\\.]+\\@[\\w\\-\\.]+\\.[a-zA-Z]{2,3}$');
			if (!reg1.test(str) && reg2.test(str)) { return true; }
		}
		else
		{
			if (str.indexOf('@') > 0 && str.lastIndexOf('.') > str.indexOf('@')+1) { return true; }
		}
	}
	return false;
}

function loginSubmit(frm)
{
	var action = 'http://extern.mdinfo.nu/mdprofile/default.aspx';
	var qs = new Querystring();
	var aid = qs.get("aid");
	var said = qs.get("said");
	var pid =  qs.get("pid");

	if(aid != null)
	{
		frm.action = action + '?aid=' + aid;
	}
	else if(said != null)
	{
		//frm.action = action + '?said=' + said;
		frm.action = action + '?pid=170&said=' + said + '&peid=9'
	}
	else if(pid != null)
	{
		frm.action = action + '?pid=' + pid;
	}
	else
	{
		frm.action = action;
	}

	frm.submit();
}