function reload() {
	window.location.href = window.location.href;
}

function addFeedback( gameid ) {
	openWindow( 'http://www.' + DOMAIN + '/addfeedback.php?id=' + gameid, 600, 450 );
}

function showScoresGame( gameid ) {
	openWindow( 'http://www.' + DOMAIN + '/scorelijsten.html?id=' + gameid, 750, Math.max( getWindowSize()["height"], 600 ) );
}

function showScores() {
	openWindow( 'http://www.' + DOMAIN + '/scorelijsten.html', 750, Math.max( getWindowSize()["height"], 600 ) );
}

function showMedals( username ) {
	openWindow( 'http://www.' + DOMAIN + '/listmedals.php?user=' + username, 750, Math.max( getWindowSize()["height"], 600 ) );
}

function showRating( gameid ) {
	openWindow( 'http://www.' + DOMAIN + '/rating.php?id=' + gameid, 750, Math.max( getWindowSize()["height"], 600 ) );
}

function showUserRating( gameid, user ) {
	openWindow( 'http://www.' + DOMAIN + '/rating.php?id=' + gameid + '&user=' + user, 750, Math.max( getWindowSize()["height"], 600 ) );
}

function showAllRatings( gameid ) {
	openWindow( 'http://www.' + DOMAIN + '/allratings.php?id=' + gameid, 750, Math.max( getWindowSize()["height"], 600 ) );
}

function showRatings() {
	openWindow( 'http://www.' + DOMAIN + '/allratings.php', 750, Math.max( getWindowSize()["height"], 600 ) );
}

function showTournament( gameid ) {
	openWindow( 'http://www.' + DOMAIN + '/tournament.php?id=' + gameid, 750, Math.max( getWindowSize()["height"], 600 ) );
}

function showPaymentInfo() {
	openWindow( 'http://www.' + DOMAIN + '/payment/?months=0', 550, Math.max( getWindowSize()["height"], 600 ) );
}

function showGiftcardInfo() {
	openWindow( 'http://www.' + DOMAIN + '/giftcard/?months=0', 600, Math.max( getWindowSize()["height"], 600 ) );
}

function openSpeelscherm( game, key, size ) {
	//openWindow( 'http://www.' + DOMAIN + '/spel/'+game+'.html?key=' + key + '&size=' + size, 830, 670 );
	openWindow( 'http://www.' + DOMAIN + '/spel/'+game+'.html?key=' + key + '&size=' + size, 830, 670 );
}

function openGame( game, key, size ) {
	openWindow( 'http://www.' + DOMAIN + '/spel/'+game+'.html?key=' + key + '&size=' + size, 830, 670 );
}

function openDuelInvitation( game, key, size ) {
	openWindow( 'http://www.' + DOMAIN + '/spel/'+game+'.html?key=' + key + '&duel=true&play=true&size=' + size, 830, 670 );
}

function openDuel( game, key, size ) {
	openWindow( 'http://www.' + DOMAIN + '/spel/'+game+'.html?key=' + key + '&duel=true&size=' + size, 830, 670 );
}

function openTournament( game, tid, key, size ) {
	openWindow( 'http://www.' + DOMAIN + '/spel/'+game+'.html?key=' + key + '&tid=' + tid + '&size=' + size, 830, 670 );
}

function openExtGame( id ) {
	openWindow( 'http://www.' + DOMAIN + '/extgame.php?id=' + id, 1030, 760 );
}

function openSpelpuntGame( game ) {
	var tempdate = new Date();
	var winname = "gpcon" + tempdate.getTime();
	var URL = 'http://www.' + DOMAIN + '/spelpunt/'+game+'.html';
	window.open( URL, winname, 'width=770,height=558,scrollbars=1,resizable') ;
}

function openWindow( url, width, height ) {
	var popupSize = new Array();
	popupSize['width'] = width;
	popupSize['height'] = height;
	var windowSize = getWindowSize();
	var windowPosition = getWindowPosition();
	
	var center = getWindowCenterPosition(windowSize, windowPosition, popupSize);
	
	var left = center['left'];
	var top = 0;	//center['top'];
	var tempdate = new Date();
	var winname = "gpcon" + tempdate.getTime();
	var win = window.open(url, winname, 'width='+width+',height='+height+',left='+left+',top='+top+',scrollbars=1,resizable');
	win.focus;
}


function makeRequest(url, parameters,header) {
   var http_request = false;
   if (window.XMLHttpRequest) { // Mozilla, Safari,...
      http_request = new XMLHttpRequest();
      if (http_request.overrideMimeType) {
			if (header!=null && header!='')
				http_request.overrideMimeType(header);
			else
	         http_request.overrideMimeType('text/xml');
      }
   } else if (window.ActiveXObject) { // IE
      try {
         http_request = new ActiveXObject("Msxml2.XMLHTTP");
      } catch (e) {
         try {
            http_request = new ActiveXObject("Microsoft.XMLHTTP");
         } catch (e) {}
      }
   }
   if (!http_request) {
      alert('Cannot create XMLHTTP instance');
      return false;
   }
   http_request.open('GET', url + parameters, true);
   http_request.send(null);

   return http_request;
}
function getWindowSize(){

	if(self.innerWidth){
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	}else if(document.documentElement && document.documentElement.clientWidth){
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	}else if(document.body){
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}

	windowSize = Array();
	windowSize['width'] = windowWidth;
	windowSize['height'] = windowHeight;
	return windowSize;

}

function setWindowSize(newWidth, newHeight){
	windowSize = getWindowSize();

	extraWidth = newWidth - windowSize['width'];
	extraHeight = newHeight - windowSize['height'];

	window.resizeBy(extraWidth, extraHeight);
}






function getWindowPosition(){
	position = Array();
	if(document.all){
		position['left'] = window.screenLeft;
		position['top'] = window.screenTop;
	}else{
		position['left'] = window.screenX;
		position['top'] = window.screenY;
	}
	return position;
}

function setWindowPosition(left, top){
	window.moveTo(left, top);
}

function moveWindowTop() {
	setWindowPosition(0,0);
}





function getScreenCenterPosition(windowWidth, windowHeight){
	screenSize = getScreenSize();
	centerPosition = Array();
	centerPosition['left'] = (screenSize['width'] - windowWidth) / 2;
	centerPosition['top'] = (screenSize['height'] - windowHeight) / 2;
	return centerPosition;
}

function getWindowCenterPosition(mainWindowSize, mainWindowPosition, centerWindowSize){

	mainWindowPosition['left'] -= 0;
	mainWindowPosition['top'] -= 0;

	centerPosition = Array();
	centerPosition['left'] = mainWindowSize['width'] / 2 - centerWindowSize['width'] / 2 + mainWindowPosition['left'];
	centerPosition['top'] = mainWindowSize['height'] / 2 - centerWindowSize['height'] / 2 + mainWindowPosition['top'];
	return centerPosition;
}

function getScrollPosition(){
	scrollPosition = Array();

	if(typeof(window.pageYOffset) == 'number'){
		scrollPosition['top'] = window.pageYOffset;
		scrollPosition['left'] = window.pageXOffset;
	}
	else if(document.documentElement.scrollTop != undefined){
		scrollPosition['top'] = document.documentElement.scrollTop;
		scrollPosition['left'] = document.documentElement.scrollLeft;
	}
	else if(document.body != undefined){
		scrollPosition['top'] = document.body.scrollTop;
		scrollPosition['left'] = document.body.scrollLeft;
	}
	else {
		scrollPosition['top'] = 0;
		scrollPosition['left'] = 0;
	}

	return scrollPosition;
}
function getElementSize(id){
	elementSize = Array();
	elementSize['width'] = document.getElementById(id).clientWidth;
	elementSize['height'] = document.getElementById(id).clientHeight;
	return elementSize;
}






function val(i) {
	return document.getElementById(i).value;
}
function delval(i) {
	document.getElementById(i).value = '';
}

function ShowHide(elem) {
	var x = document.getElementById(elem).style;
	x.display = (x.display == 'block') ? 'none' : 'block';
}

function SetCookie(name, value) {
        var argv = SetCookie.arguments;
        var argc = SetCookie.arguments.length;
        var expires = (argc > 2) ? argv[2] : null;
        var path = (argc > 3) ? argv[3] : null;
        var domain = (argc > 4) ? argv[4] : null;
        var secure = (argc > 5) ? argv[5] : false;
        document.cookie = name + "=" + escape (value) +
	((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
	((path == null) ? "" : ("; path=" + path)) +
	((domain == null) ? "" : ("; domain=" + domain)) +
	((secure == true) ? "; secure" : "");
}

function getCookieVal(offset) {
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1) endstr = document.cookie.length;
	return unescape (document.cookie.substring(offset, endstr));
}
function GetCookie(name) {
	var arg = name+"=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	while (i < clen) {
		var j = i + alen;
		if (document.cookie.substring(i, j) == arg) return getCookieVal(j);
		i = document.cookie.indexOf(" ", i) + 1;
		if (i == 0) break;
	}
	return null;
}

function toUrl( url ) {
	if (url.indexOf('://') <= 0)
		url = 'http://' + url;
	return url;
}

/* EMAIL VALIDATION SCRIPT */
		
		function emailCheck (emailStr) {
			/* The following pattern is used to check if the entered e-mail address
			   fits the user@domain format.  It also is used to separate the username
			   from the domain. */
			var emailPat=/^(.+)@(.+)$/
			/* The following string represents the pattern for matching all special
			   characters.  We don't want to allow special characters in the address. 
			   These characters include ( ) < > @ , ; : \ " . [ ]    */
			var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
			/* The following string represents the range of characters allowed in a 
			   username or domainname.  It really states which chars aren't allowed. */
			var validChars="\[^\\s" + specialChars + "\]"
			/* The following pattern applies if the "user" is a quoted string (in
			   which case, there are no rules about which characters are allowed
			   and which aren't; anything goes).  E.g. "jiminy cricket"@disney.com
			   is a legal e-mail address. */
			var quotedUser="(\"[^\"]*\")"
			/* The following pattern applies for domains that are IP addresses,
			   rather than symbolic names.  E.g. joe@[123.124.233.4] is a legal
			   e-mail address. NOTE: The square brackets are required. */
			var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
			/* The following string represents an atom (basically a series of
			   non-special characters.) */
			var atom=validChars + '+'
			/* The following string represents one word in the typical username.
			   For example, in john.doe@somewhere.com, john and doe are words.
			   Basically, a word is either an atom or quoted string. */
			var word="(" + atom + "|" + quotedUser + ")"
			// The following pattern describes the structure of the user
			var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
			/* The following pattern describes the structure of a normal symbolic
			   domain, as opposed to ipDomainPat, shown above. */
			var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
			
			
			/* Finally, let's start trying to figure out if the supplied address is
			   valid. */
			
			/* Begin with the coarse pattern to simply break up user@domain into
			   different pieces that are easy to analyze. */
			var matchArray=emailStr.match(emailPat)
			if (matchArray==null) {
			  /* Too many/few @'s or something; basically, this address doesn't
			     even fit the general mould of a valid e-mail address. */
				//alert("Email address seems incorrect (check @ and .'s)")
				return false
			}
			var user=matchArray[1]
			var domain=matchArray[2]
			
			// See if "user" is valid 
			if (user.match(userPat)==null) {
			    // user is not valid
			    //alert("The username doesn't seem to be valid.")
			    return false
			}
			
			/* if the e-mail address is at an IP address (as opposed to a symbolic
			   host name) make sure the IP address is valid. */
			var IPArray=domain.match(ipDomainPat)
			if (IPArray!=null) {
			    // this is an IP address
				  for (var i=1;i<=4;i++) {
				    if (IPArray[i]>255) {
				        //alert("Destination IP address is invalid!")
					return false
				    }
			    }
			    return true
			}
			
			// Domain is symbolic name
			var domainArray=domain.match(domainPat)
			if (domainArray==null) {
				//alert("The domain name doesn't seem to be valid.")
			    return false
			}
			
			/* domain name seems valid, but now make sure that it ends in a
			   three-letter word (like com, edu, gov) or a two-letter word,
			   representing country (uk, nl), and that there's a hostname preceding 
			   the domain or country. 
			   OF EEN VIERLETTER WOORD! zoals info
			   */
			
			/* Now we need to break up the domain to get a count of how many atoms
			   it consists of. */
			var atomPat=new RegExp(atom,"g")
			var domArr=domain.match(atomPat)
			var len=domArr.length
			if (domArr[domArr.length-1].length<2 || 
			    domArr[domArr.length-1].length>4) {
			   // the address must end in a two letter or three letter word. OF EEN VIERLETTER WOORD
			   //alert("The address must end in a three-letter domain, or two letter country.")
			   return false
			}
			
			// Make sure there's a host name preceding the domain.
			if (len<2) {
			   var errStr="This address is missing a hostname!"
			   //alert(errStr)
			   return false
			}
			
			// If we've gotten this far, everything's valid!
			return true;
		}
		



/* CHECKDATE SCRIPT */
		
		var dtCh= "/";
		var minYear=1900;
		var maxYear=2008;
		
		function isInteger(s){
			var i;
		    for (i = 0; i < s.length; i++){   
		        // Check that current character is number.
		        var c = s.charAt(i);
		        if (((c < "0") || (c > "9"))) return false;
		    }
		    // All characters are numbers.
		    return true;
		}
		
		function stripCharsInBag(s, bag){
			var i;
		    var returnString = "";
		    // Search through string's characters one by one.
		    // If character is not in bag, append to returnString.
		    for (i = 0; i < s.length; i++){   
		        var c = s.charAt(i);
		        if (bag.indexOf(c) == -1) returnString += c;
		    }
		    return returnString;
		}
		
		function daysInFebruary (year){
			// February has 29 days in any year evenly divisible by four,
		    // EXCEPT for centurial years which are not also divisible by 400.
		    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
		}
		function DaysArray(n) {
			for (var i = 1; i <= n; i++) {
				this[i] = 31
				if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
				if (i==2) {this[i] = 29}
		   } 
		   return this
		}
		
		function isDate(dtStr){
			var daysInMonth = DaysArray(12)
			var pos1=dtStr.indexOf(dtCh)
			var pos2=dtStr.indexOf(dtCh,pos1+1)
			var strMonth=dtStr.substring(pos1+1,pos2)
			var strDay=dtStr.substring(0,pos1)
			var strYear=dtStr.substring(pos2+1)
			strYr=strYear
			if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
			if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
			for (var i = 1; i <= 3; i++) {
				if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
			}
			month=parseInt(strMonth)
			day=parseInt(strDay)
			year=parseInt(strYr)
			if (pos1==-1 || pos2==-1){
				//alert("The date format should be : dd/mm/yyyy")
				return false
			}
			if (strMonth.length<1 || month<1 || month>12){
				//alert("Please enter a valid month")
				return false
			}
			if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
				//alert("Please enter a valid day")
				return false
			}
			if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
				//alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
				return false
			}
			if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
				//alert("Please enter a valid date")
				return false
			}
		return true
		}