var bMouseOver = true;
var alternateContent = '<img src="images/header.jpg" width="822" height="165" alt="" />';

 
browserName = navigator.appName;
browserVersion = parseInt (navigator.appVersion);
if (browserName == "Microsoft Internet Explorer"  && browserVersion < 4)
{
	bMouseOver = false;
}
 
if (bMouseOver)
{		
   
	NLaan = new Image();
	NLaan.src = "images/flag_nl_hi.gif";
	NLuit = new Image();
	NLuit.src = "images/flag_nl_hi.gif";
	
	ENaan = new Image();
	ENaan.src = "images/flag_en_hi.gif";
	ENuit = new Image();
	ENuit.src = "images/flag_en.gif";
}


function  img_act(imgName)
{
		if (bMouseOver)
		{		
        	imgOn = eval(imgName + "aan.src");
			document [imgName].src = imgOn;
		}
}
	


function img_inact(imgName)

{
		if (bMouseOver)
		{
        	imgOff = eval(imgName + "uit.src");
			document [imgName].src = imgOff;
		}
} 


function openRSSWindow(url, height, width, name) 
	{
	   var left = Math.floor( (screen.width - width) / 2);
	   var top = Math.floor( (screen.height - height) / 2);   
	   var winParms = "top=" + top + ",left=" + left + ",height=" + height + ",width=" + width;
	   winParms += ",status=yes,toolbar=yes,menubar=yes,location=yes,scrollbars=yes,resizable=yes";   
	   var win = window.open(url, name, winParms);
	   if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
	}

function openPhotoWindow(url, height, width, name) 
	{
	   var left = Math.floor( (screen.width - width) / 2);
	   var top = Math.floor( (screen.height - height) / 2);   
	   var winParms = "top=" + top + ",left=" + left + ",height=" + height + ",width=" + width;
	   winParms += ",status=no,toolbar=no,menubar=no,location=no,scrollbars=no,resizable=no";   
	   var win = window.open(url, name, winParms);
	   if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); }
	}
	
function changeStyle(id, stylename)	
	{
		if (document.getElementById(id))
		{
			document.getElementById(id).className = stylename;
		}
	}

function highlightNews(id)	
	{
		if (document.getElementById(id))
		{
			document.getElementById(id).style.color='#15181d';
			document.getElementById(id).style.cursor='pointer';
			document.getElementById(id).style.listStyleImage = 'url(./images/list-image_hi.gif)';
		}
	}

function unHighlightNews(id)	
	{
		if (document.getElementById(id))
		{
			document.getElementById(id).style.color='#FFFFFF';
			document.getElementById(id).style.listStyleImage = 'url(./images/list-image.gif)';
		}
	}
	
function highlightSponsorNews(id)	
	{
		if (document.getElementById(id))
		{
			document.getElementById(id).style.color='#da150c';
			document.getElementById(id).style.cursor='pointer';
			document.getElementById(id).style.listStyleImage = 'url(./images/list-image.gif)';
		}
	}

function unHighlightSponsorNews(id)	
	{
		if (document.getElementById(id))
		{
			document.getElementById(id).style.color='#15181d';
			document.getElementById(id).style.listStyleImage = 'url(./images/list-image_hi.gif)';
		}
	}
	
function highlightRSSNews(id)	
	{
		if (document.getElementById(id))
		{
			document.getElementById(id).style.color='#da150c';
			document.getElementById(id).style.cursor='pointer';
			document.getElementById(id).style.listStyleImage = 'url(./images/list-image.gif)';
		}
	}

function unHighlightRSSNews(id)	
	{
		if (document.getElementById(id))
		{
			document.getElementById(id).style.color='#15181d';
			document.getElementById(id).style.listStyleImage = 'url(./images/list-image_hi.gif)';
		}
	}

	
	
function replaceAll( str, from, to )
	{
	    var idx = str.indexOf( from );
	    while ( idx > -1 ) {
	        str = str.replace( from, to );
	        idx = str.indexOf( from );
	    }
	    return str;
	}

function isEmailAdres(string)
	{
	  var patroon =
	    /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;
	  return patroon.test(string);
	}

function isTel(string)
	{
		if(string.length!=10) return false;
		return isTelefoon(string) || isMobile(string);
	}	
	
function isTelefoon(string)
	{
	  var patroon =
	    /^0[1-9][0-9]{1,2}(-{0,1})[1-9][0-9]{5,6}$/;
	  return patroon.test(string);
	}

function SubmitForm()
	{
		var sError = "";
		var bReturn = true;
		
		if (document.frmInfo.Voornaam.value == ""){sError = sError + "- Voornaam\n"; bReturn = false;}
		if (document.frmInfo.Achternaam.value == ""){sError = sError + "- Achternaam\n"; bReturn = false;}
		if ((!document.frmInfo.Geslacht[0].checked)&&(!document.frmInfo.Geslacht[1].checked)){sError = sError + "- Aanhef\n"; bReturn = false;}
		
		document.frmInfo.Telefoon.value = replaceAll(document.frmInfo.Telefoon.value,"-","");
		if (document.frmInfo.Telefoon.value == ""){sError = sError + "- Telefoon\n"; bReturn = false;}
		if(!isEmailAdres(document.frmInfo.Email.value)){sError = sError + "- E-mailadres\n"; bReturn = false;}
															
		if (sError == "")
		{
			document.frmInfo.submit();	
		}
		else
		{
			alert ("Gelieve de volgende velden in te vullen:\n\n" + sError);
			bReturn = false;
		}
		return bReturn;
	}

function externalLinks() 
	{ 
  		if (!document.getElementsByTagName) return; 
  		var anchors = document.getElementsByTagName("a"); 
  		for (var i=0; i<anchors.length; i++) { 
    		var anchor = anchors[i]; 
    		if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external") 
      		anchor.target = "_blank"; 
  		} 
 	}
	
function clickIE4()
{
	if (event.button==2)
	{
		return false;
	}
}

function clickNS4(e)
{
	if (document.layers||document.getElementById&&!document.all)
	{
		if (e.which==2||e.which==3)
		{
			return false;
		}
	}
}

if (document.layers)
{
	document.captureEvents(Event.MOUSEDOWN);
	document.onmousedown=clickNS4;
}
else if (document.all&&!document.getElementById)
{
	document.onmousedown=clickIE4;
}

//document.oncontextmenu=new Function("return false")

	
function disableSelection(target)
{
	if (typeof target.onselectstart!="undefined") //IE route
		target.onselectstart=function(){return false}
	else if (typeof target.style.MozUserSelect!="undefined") //Firefox route
		target.style.MozUserSelect="none"
	else //All other route (ie: Opera)
		target.onmousedown=function(){return false}
	target.style.cursor = "default"
}

 
window.onload = externalLinks;