function ShowBig(path,picture,w,h)
{
url = picture;
w = w + 20;
h = h + 20;
ext = 'width='+w+',height='+h;
posx = (screen.availWidth/2) - (0.5 * w);
posy = (screen.availheight/2) - (0.5 * h);
pos = 'top='+posy+',left='+posx;
win = window.open('../images/'+path+'/full/'+url,'bigger',ext+','+pos);
}
//=======================================================================
function Popup(pagina,w,h)
{
w = w + 20;
h = h + 60;

widthmid = screen.availWidth / 2;
heightmid = screen.availHeight / 2;
left = widthmid - (w / 2);
boven = heightmid - (h / 2);

ext = 'width='+w+',height='+h+',left='+left+',top='+boven+',scrollbars=yes';
url = pagina
wn = window.open(pagina,'',ext);
}
//=======================================================================
function Envelop(onoff)
{
if (onoff == 1) document.getElementById('envelop').src = '../images/open.gif';
else document.getElementById('envelop').src = '../images/closed.gif';
}

//=======================================================================
function ShowRoute(picture,w,h)
{
url = picture;
ext = 'width='+w+',height='+h;
posx = (screen.availWidth/2) - (0.5 * w);
posy = (screen.availheight/2) - (0.5 * h);
pos = 'top='+posy+',left='+posx;
win = window.open(url,'bigger',ext+','+pos);
}

//========================================
	function emailCheck (emailStr) {
    var checkTLD=1;
    var knownDomsPat=/^(biz|com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
    var emailPat=/^(.+)@(.+)$/;
    var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
    var validChars="\[^\\s" + specialChars + "\]";
    var quotedUser="(\"[^\"]*\")";
    var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
    var atom=validChars + '+';
    var word="(" + atom + "|" + quotedUser + ")";
    var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
    var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
    var matchArray=emailStr.match(emailPat);

   if (matchArray==null) {
        alert("E-mail adres lijkt onjuist @ en punt");
       return false;
    }
    
    var user=matchArray[1];
    var domain=matchArray[2];

   for (i=0; i<user.length; i++) {
       if (user.charCodeAt(i)>127) {
            alert("Deze gebruikersnaam bevat onjuiste karakters.");
           return false;
       }
    }

   for (i=0; i<domain.length; i++) {
       if (domain.charCodeAt(i)>127) {
            alert("Deze domeinnaam bevat onjuiste karakters.");
           return false;
        }
    }

   if (user.match(userPat)==null) {
        alert("De gebruikersnaan is ongeldig.");
       return false;
    }

    var IPArray=domain.match(ipDomainPat);
    
   if (IPArray!=null) {
       for (var i=1;i<=4;i++) {
           if (IPArray[i]>255) {
                alert("Doel IP adres in ongeldig");
               return false;
            }
        }
       return true;
    }
 
    var atomPat=new RegExp("^" + atom + "$");
    var domArr=domain.split(".");
    var len=domArr.length;
   for (i=0;i<len;i++) {
       if (domArr[i].search(atomPat)==-1) {
            alert("Ongeldig domein.");
           return false;
        }
    }

   if (checkTLD && domArr[domArr.length-1].length!=2 && 
        domArr[domArr.length-1].search(knownDomsPat)==-1) {
        alert("Het adres moet eindigen op een domein of 2-letterige landcode");
       return false;
    }
   if (len<2) {
        alert("De hostname van dit adres mist");
       return false;
    }

return true;
}

/***********************************************
* Required field(s) validation v1.10- By NavSurf
* Visit Nav Surf at http://navsurf.com
* Visit http://www.dynamicdrive.com/ for full source code
***********************************************/

function formCheck1(formobj){
	// Enter name of mandatory fields
	var fieldRequired = Array("naam", "adres", "woonplaats", "telefoon", "email", "arverify");
	// Enter field description to appear in the dialog box
	var fieldDescription = Array("Uw naam", "Uw adres", "Uw woonplaats", "Uw telefoonnummer", "Uw e-mailadres", "De verificatiecode");
	// dialog message
	var alertMsg = "U moet de volgende velden invullen:\n";
	
	var l_Msg = alertMsg.length;
	
	for (var i = 0; i < fieldRequired.length; i++){
		var obj = formobj.elements[fieldRequired[i]];
		if (obj){
			switch(obj.type){
			case "select-one":
				if (obj.selectedIndex == -1 || obj.options[obj.selectedIndex].text == ""){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
				break;
			case "select-multiple":
				if (obj.selectedIndex == -1){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
				break;
			case "text":
			case "textarea":
				if (obj.value == "" || obj.value == null){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
				break;
			default:
			}
			if (obj.type == undefined){
				var blnchecked = false;
				for (var j = 0; j < obj.length; j++){
					if (obj[j].checked){
						blnchecked = true;
					}
				}
				if (!blnchecked){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
			}
		}
	}

	if (alertMsg.length == l_Msg){
		return true;
	}else{
		alert(alertMsg);
		return false;
	}
}


function formCheck2(formobj){
	// Enter name of mandatory fields
	var fieldRequired = Array("naam", "adres", "woonplaats", "telefoon", "email", "voorkeur[]", "arverify");
	// Enter field description to appear in the dialog box
	var fieldDescription = Array("Uw naam", "Uw adres", "Uw woonplaats", "Uw telefoonnummer", "Uw e-mailadres", "Uw voorkeursdag", "De verificatiecode");
	// dialog message
	var alertMsg = "U moet de volgende velden invullen:\n";
	
	var l_Msg = alertMsg.length;
	
	for (var i = 0; i < fieldRequired.length; i++){
		var obj = formobj.elements[fieldRequired[i]];
		if (obj){
			switch(obj.type){
			case "select-one":
				if (obj.selectedIndex == -1 || obj.options[obj.selectedIndex].text == ""){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
				break;
			case "select-multiple":
				if (obj.selectedIndex == -1){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
				break;
			case "text":
			case "textarea":
				if (obj.value == "" || obj.value == null){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
				break;
			default:
			}
			if (obj.type == undefined){
				var blnchecked = false;
				for (var j = 0; j < obj.length; j++){
					if (obj[j].checked){
						blnchecked = true;
					}
				}
				if (!blnchecked){
					alertMsg += " - " + fieldDescription[i] + "\n";
				}
			}
		}
	}

	if (alertMsg.length == l_Msg){
		return true;
	}else{
		alert(alertMsg);
		return false;
	}
}


function formCheck3(formobj){
	if(document.getElementById('accoord').checked == false){
		alert("U moet uw accoord nog geven.");
		return false;
	}else{
		// Enter name of mandatory fields
		var fieldRequired = Array("naam", "adres", "woonplaats", "telefoon", "email", "accoord");
		// Enter field description to appear in the dialog box
		var fieldDescription = Array("Naam", "Adres", "Woonplaats", "Telefoon",  "E-mail", "Uw accoord" );
		// dialog message
		var alertMsg = "U moet de volgende velden invullen:\n";
		
		var l_Msg = alertMsg.length;
		
		for (var i = 0; i < fieldRequired.length; i++){
			var obj = formobj.elements[fieldRequired[i]];
			if (obj){
				switch(obj.type){
				case "select-one":
					if (obj.selectedIndex == -1 || obj.options[obj.selectedIndex].text == ""){
						alertMsg += " - " + fieldDescription[i] + "\n";
					}
					break;
				case "select-multiple":
					if (obj.selectedIndex == -1){
						alertMsg += " - " + fieldDescription[i] + "\n";
					}
					break;
				case "text":
				case "textarea":
					if (obj.value == "" || obj.value == null){
						alertMsg += " - " + fieldDescription[i] + "\n";
					}
					break;
				default:
				}
				if (obj.type == undefined){
					var blnchecked = false;
					for (var j = 0; j < obj.length; j++){
						if (obj[j].checked){
							blnchecked = true;
						}
					}
					if (!blnchecked){
						alertMsg += " - " + fieldDescription[i] + "\n";
					}
				}
			}
		}
	
		if (alertMsg.length == l_Msg){
			return true;
		}else{
			alert(alertMsg);
			return false;
		}
		
	}
}