function imageSwap(imageName){ 

	document.getElementById('mainImage').src = imageName;
	
	}

function popup($id, image){
	var winl = 0;
	var wint = 0;
	if (screen.width) {
		winl = (screen.width-800)/2;
		wint = (screen.height-515)/2;
	} else{
		winl = 0;
		wint =0;
	}
	if (winl < 0) winl = 0;
	//if (wint < 0) wint = 0;
	wint = 0;
	winl = 0;
	var settings ='height='+450+',';
	settings +='width='+550+',';
	settings +='top='+wint+',';
	settings +='left='+winl+',';
	settings +='scrollbars='+scroll+',';
	settings +='resizable=yes';
	
	win = window.open('popup.php?id='+$id+'&foto='+image,'mywindow',settings);
	win.window.focus();
}

function popup_2($id,$lang){
	var winl = 0;
	var wint = 0;
	if (screen.width) {
		winl = (screen.width-400)/2;
		wint = (screen.height-400)/2;
	} else{
		winl = 0;
		wint =0;
	}
	if (winl < 0) winl = 0;
	if (wint < 0) wint = 0;
	
	var settings = 'height=400,';
	settings += 'width=400,';
	settings += 'top='+wint+',';
	settings += 'left='+winl+',';
	settings += 'scrollbars=auto,';
	settings += 'resizable=yes';
	
	
	win = window.open('popup2.php?id='+$id+'&lang='+$lang , 'scheepsmakelaardij',settings);
	win.window.focus();
}

function popupWin($url){
  var winl = 0;
	var wint = 0;
	if (screen.width) {
		winl = (screen.width-800)/2;
		wint = (screen.height-515)/2;
	} else{
		winl = 0;
		wint =0;
	}
	if (winl < 0) winl = 0;
	if (wint < 0) wint = 0;

	var settings ='height='+400+',';
	settings +='width='+700+',';
	settings +='top='+wint+',';
	settings +='left='+winl+',';
	settings +='scrollbars='+scroll+',';
	settings +='resizable=yes';
	
	win = window.open($url,'mywindow',settings);
	win.window.focus();
}

function checkEmailDienst(){
	if (document.getElementById('emailadres').value != "") {
		return true;
	} else {
		alert('Email adres is verplicht !');
		return false;
	}
}

function showImg(sScr) {
  //alert(sScr);
	document.getElementById("mainImage").src = sScr;
}

function checkMat($name) {
  if ($name == 'staal') {
    document.getElementById('hout').checked = false;
    document.getElementById('overig').checked = false;
  }
  if ($name == 'hout') {
    document.getElementById('staal').checked = false;
    document.getElementById('overig').checked = false;
  }
  if ($name == 'overig') {
    document.getElementById('hout').checked = false;
    document.getElementById('staal').checked = false;
  }
}

function checkVoorstuwing($name) {
  if ($name == 'zeil') {
    document.getElementById('motor').checked = false;
    document.getElementById('geen_voortstuwing').checked = false;
  }
  if ($name == 'motor') {
    document.getElementById('zeil').checked = false;
    document.getElementById('geen_voortstuwing').checked = false;
  }
  if ($name == 'geen_voortstuwing') {
    document.getElementById('motor').checked = false;
    document.getElementById('zeil').checked = false;
  }
}

function checkGebruik($name) {
  if ($name == 'recreatie') {
    document.getElementById('bewoning').checked = false;
    document.getElementById('bedrijfsmatig').checked = false;
  }
  if ($name == 'bewoning') {
    document.getElementById('recreatie').checked = false;
    document.getElementById('bedrijfsmatig').checked = false;
  }
  if ($name == 'bedrijfsmatig') {
    document.getElementById('bewoning').checked = false;
    document.getElementById('recreatie').checked = false;
  }
}

function checkVaargebied($name) {
  if ($name == 'vaargebied') {
    document.getElementById('zeegaand').checked = false;
  }
  if ($name == 'zeegaand') {
    document.getElementById('vaargebied').checked = false;
  }
}

function writeConsole(youtube_id) {
	w = 425;
	h = 344; 
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	top.consoleRef=window.open('','myconsole',
	'width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition
	 +',menubar=0'
	 +',toolbar=0'
	 +',status=0'
	 +',location=0'
	 +',scrollbars=0'
	 +',resizable=0')
	top.consoleRef.document.writeln(
	'<html><head><title>Console</title></head>'
	 +'<body bgcolor=white style="margin:0; padding:0;" onLoad="self.focus()">'
	 +'<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/'+youtube_id+'&color1=0xb1b1b1&color2=0xcfcfcf&feature=player_embedded&fs=1"></param><param name="allowFullScreen" value="true"></param><embed src="http://www.youtube.com/v/'+youtube_id+'&color1=0xb1b1b1&color2=0xcfcfcf&feature=player_embedded&fs=1" type="application/x-shockwave-flash" allowfullscreen="true" width="425" height="344"></embed></object>'
	 +'</body></html>'
	)  
	top.consoleRef.document.close()


}