var swap = document.images ? true : false;
var start = "../images/design/menu/"
var imgList;

function picswap(who, what)
{
	if (swap && document.images[who].complete) document.images[who].src = start + what;
}

function preload()
{
 	if (swap)
 	{
 		var srcList = new Array();
 		srcList[0] = start + "sms-maxx_1.gif";
 		srcList[1] = start + "nieuws_1.gif";;
 		srcList[2] = start + "oversms_1.gif";
 		srcList[3] = start + "acties_1.gif";
 		srcList[4] = start + "sponsors_1.gif";
 		srcList[5] = start + "contact_1.gif";
		imgList = new Array();
		for (var counter = 0; counter < srcList.length; counter ++)
		{
			imgList[counter] = new Image();
			imgList[counter].src = srcList[counter];
		}
	}
}

function checkForm()
{
	if (document.mailform.naam.value == "" || document.mailform.email.value == "" || document.mailform.onderwerp.value == "" || document.mailform.bericht.value == "" || document.mailform.code.value == "")
	{
		alert("Vul a.u.b. alle verplichte velden in.");
	}
	else
	{
		if (document.mailform.email.value.indexOf("@") < 0 || document.mailform.email.value.indexOf(".") < 0)
		{
			alert("Voer a.u.b. een geldig e-mailadres in.");
		}
		else
		{
			document.mailform.submit();
		}
	}
}

function changeMoney()
{
	var aanwezigen = document.mailform.personen.value;
	document.mailform.aantal.value = aanwezigen;
	document.mailform.kosten.value = aanwezigen * 100;
}

function checkBform()
{
	if (document.mailform.vl.value == "" || document.mailform.anaam.value == "" || document.mailform.straat.value == "" || document.mailform.nummer.value == "" || document.mailform.postcode.value == "" || document.mailform.plaats.value == "" || document.mailform.telefoon.value == "" || document.mailform.email.value == "" || document.mailform.personen.value == "" || document.mailform.kinderen.value == "")
	{
		alert("Vul a.u.b. alle verplichte velden in.");
	}
	else
	{
		if (document.mailform.email.value.indexOf("@") < 0 || document.mailform.email.value.indexOf(".") < 0)
		{
			alert("Voer a.u.b. een geldig e-mailadres in.");
		}
		else
		{
			alert("Uw aanmelding wordt nu verstuurd.");
			document.mailform.submit();
		}
	}
}