// JavaScript Document

	
//menu

	function zetdivshidden()
		{
			
				document.getElementById("intro").style.visibility="visible";
				document.getElementById("geschiedenis").style.visibility="hidden";
				document.getElementById("hoegemaakt").style.visibility="hidden";
				document.getElementById("feedback").style.visibility="hidden"
				document.getElementById("faq").style.visibility="hidden";
				document.getElementById("copyright").style.visibility="hidden";
				document.getElementById("paarsbal").style.visibility="hidden";
				document.getElementById("roodbal").style.visibility="hidden";
				document.getElementById("roodbal2").style.visibility="hidden";
				document.getElementById("blauwbal").style.visibility="hidden";
				document.getElementById("groenbal").style.visibility="hidden";
		}
	//fase1
	function showfase1 ()
		{
			clearfase234();
			document.getElementById("fase1").style.visibility = "visible";
		}
	function clearfase234()
		{
			document.getElementById("fase2").style.visibility="hidden";
			document.getElementById("fase3").style.visibility="hidden";
			document.getElementById("fase4").style.visibility="hidden";			
		}
	//fase2
	function showfase2blauw ()
		{
			clearfase34();
			clearballs();
			document.getElementById("fase2").style.visibility="visible";
			document.getElementById("blauwbal").style.visibility="visible";
		}
	function showfase2groen ()
		{
			clearfase34();
			clearballs();
			document.getElementById("fase2").style.visibility="visible";
			document.getElementById("groenbal").style.visibility="visible";
		}
	function showfase2paars ()
		{
			clearfase34();
			clearballs();
			document.getElementById("fase2").style.visibility="visible";
			document.getElementById("paarsbal").style.visibility="visible";
		}
	function showfase2rood ()
		{
			clearfase34();
			clearballs();
			document.getElementById("fase2").style.visibility="visible";
			document.getElementById("roodbal").style.visibility="visible";
		}
	
	function showfase2rood2 ()
		{
			clearfase34();
			clearballs();
			document.getElementById("fase2").style.visibility="visible";
			document.getElementById("roodbal2").style.visibility="visible";
		}
	function clearfase34()
		{
			document.getElementById("fase3").style.visibility="hidden";
			document.getElementById("fase4").style.visibility="hidden";
			
		}
	function clearballs()
		{
			document.getElementById("blauwbal").style.visibility="hidden";
			document.getElementById("groenbal").style.visibility="hidden";
			document.getElementById("paarsbal").style.visibility="hidden";
			document.getElementById("roodbal").style.visibility="hidden";
			document.getElementById("roodbal2").style.visibility="hidden";
		}
	//fase3
	function showfase3 ()
		{
			
			clearfase24();
			document.getElementById("fase3").style.visibility="visible";
			
		}
	function clearfase24()
		{
			
			document.getElementById("fase2").style.visibility="hidden";
			document.getElementById("fase4").style.visibility="hidden";
		}
		
	//fase4
	function showfase4 ()
		{
			
			clearfase23();
			document.getElementById("fase4").style.visibility="visible";
			showpage();
		}
	function clearfase23()
		{
			document.getElementById("fase2").style.visibility="hidden";
			document.getElementById("fase3").style.visibility="hidden";
		}
	//showpages
	function showpage()
		{	
			cleardivs();
			
			if(document.getElementById("blauwbal").style.visibility=="visible")
			{
				
				document.getElementById("faq").style.visibility="visible";
			}
			
			if(document.getElementById("roodbal").style.visibility=="visible")
			{
				document.getElementById("geschiedenis").style.visibility="visible";
			}
			
			if(document.getElementById("groenbal").style.visibility=="visible")
			{
				document.getElementById("hoegemaakt").style.visibility="visible";
			}
			
			if(document.getElementById("roodbal2").style.visibility=="visible")
			{
				document.getElementById("feedback").style.visibility="visible";
			}
			
			if(document.getElementById("paarsbal").style.visibility=="visible")
			{
				document.getElementById("intro").style.visibility="visible";
			}
		}
	
	function copyright()
		{
		cleardivs();
		clearballs();
		showfase1();
		document.getElementById("copyright").style.visibility="visible";
		}
		
	function cleardivs()
		{
			document.getElementById("intro").style.visibility="hidden";
			document.getElementById("hoegemaakt").style.visibility="hidden";
			document.getElementById("geschiedenis").style.visibility="hidden";
			document.getElementById("copyright").style.visibility="hidden";
			document.getElementById("faq").style.visibility="hidden";
			document.getElementById("feedback").style.visibility="hidden";
		}
	
	function checkemail()
	{

		var sText = document.getElementById("mailadres").value;
		var myRegExp =  /^.*@\w*\.\w*/;
		foundMatch = myRegExp.exec(sText);

		if (!foundMatch)
		{
			alert( "Dit is geen geldig emailadres" );
		}

	}