function testbrowser(){

    var browser = navigator.appName;
	var browserversie = navigator.appVersion;
    var versie = parseFloat(browserversie);
	var codenaam = navigator.appCodeName;
	var agent = navigator.userAgent;
	var platform = navigator.platform;

	//alert(browser + '\n\n' + browserversie);

	if (agent.indexOf('Opera')>-1){
        document.getElementById("style").href = "styles/mainstyle.css";
		//alert('U gebruikt Opera in een ' + platform + '-omgeving.');
        //alert ('browser: ' + browser + '\nbrowserversie: ' + browserversie + '\ncodenaam: ' + codenaam + '\nagent: ' + agent + '\nplatform: ' + platform);
	}
	else if (agent.indexOf('Firefox')>-1){
        document.getElementById("style").href = "styles/mainstyle.css";
		//alert('U gebruikt Firefox in een ' + platform + '-omgeving.');
        //alert ('browser: ' + browser + '\nbrowserversie: ' + browserversie + '\ncodenaam: ' + codenaam + '\nagent: ' + agent + '\nplatform: ' + platform);
	}
	else if(agent.indexOf('MSIE')>-1){
        document.getElementById("style").href = "styles/mainstylems.css";
		//alert('U gebruikt Internet Explorer in een ' + platform + '-omgeving.');
        //alert ('browser: ' + browser + '\nbrowserversie: ' + browserversie + '\ncodenaam: ' + codenaam + '\nagent: ' + agent + '\nplatform: ' + platform);
	}
	else if(agent.indexOf('Safari')>-1){
        document.getElementById("style").href = "styles/mainstyle.css";
		//alert('U gebruikt Safari in een ' + platform + '-omgeving.');
        //alert ('browser: ' + browser + '\nbrowserversie: ' + browserversie + '\ncodenaam: ' + codenaam + '\nagent: ' + agent + '\nplatform: ' + platform);
	}
	else {
        document.getElementById("style").href = "styles/mainstyle.css";
		//alert('U gebruikt een andere browser in een ' + platform + '-omgeving.');
        //alert ('browser: ' + browser + '\nbrowserversie: ' + browserversie + '\ncodenaam: ' + codenaam + '\nagent: ' + agent + '\nplatform: ' + platform);
	}
}

function testbrowserx(){
	var browser = navigator.appName;
	var browserversie = navigator.appVersion;
    var versie = parseFloat(browserversie);
	var codenaam = navigator.appCodeName;
	var agent = navigator.userAgent;
	var platform = navigator.platform;

	//alert(browser + '\n\n' + browserversie);

	if (agent.indexOf('Opera')>-1){
        document.getElementById("style").href = "../styles/mainstyle.css";
		//alert('U gebruikt Opera in een ' + platform + '-omgeving.');
        //alert ('browser: ' + browser + '\nbrowserversie: ' + browserversie + '\ncodenaam: ' + codenaam + '\nagent: ' + agent + '\nplatform: ' + platform);
	}
	else if (agent.indexOf('Firefox')>-1){
        document.getElementById("style").href = "../styles/mainstyle.css";
		//alert('U gebruikt Firefox in een ' + platform + '-omgeving.');
        //alert ('browser: ' + browser + '\nbrowserversie: ' + browserversie + '\ncodenaam: ' + codenaam + '\nagent: ' + agent + '\nplatform: ' + platform);
	}
	else if(agent.indexOf('MSIE')>-1){
        document.getElementById("style").href = "../styles/mainstylems.css";
		//alert('U gebruikt Internet Explorer in een ' + platform + '-omgeving.');
        //alert ('browser: ' + browser + '\nbrowserversie: ' + browserversie + '\ncodenaam: ' + codenaam + '\nagent: ' + agent + '\nplatform: ' + platform);
	}
	else if(agent.indexOf('Safari')>-1){
        document.getElementById("style").href = "../styles/mainstyle.css";
		//alert('U gebruikt Safari in een ' + platform + '-omgeving.');
        //alert ('browser: ' + browser + '\nbrowserversie: ' + browserversie + '\ncodenaam: ' + codenaam + '\nagent: ' + agent + '\nplatform: ' + platform);
	}
	else {
        document.getElementById("style").href = "../styles/mainstyle.css";
		//alert('U gebruikt een andere browser in een ' + platform + '-omgeving.');
        //alert ('browser: ' + browser + '\nbrowserversie: ' + browserversie + '\ncodenaam: ' + codenaam + '\nagent: ' + agent + '\nplatform: ' + platform);
	}
}

function pageresize(){

    if (window != top) top.location.href = location.href;
		self.moveTo(0,0);
	if ((self.width != screen.availWidth)||(self.height != screen.availHeight))
		{
  		self.resizeTo(screen.availWidth,screen.availHeight);
		}
}

function screentype(){

    var width = screen.availWidth;
    var height = screen.availHeight;
    var aspectratio = width/height;

    var agent = navigator.userAgent;

    //alert(aspectratio + "\nwidth: " + width + "\nheight: " + height);

    if(aspectratio < 1.3){
        document.getElementById("navbarx").style.marginBottom = '1%';
    }

    if(height <= 800){
        document.getElementById("contentx").style.margin = '0.5% auto';
    }

    if(agent.indexOf('Safari')>-1){
        document.getElementById("imagecontainer").style.width = '60%';
    }
    /*if(agent.indexOf('MSIE')>-1){
        document.getElementById("imagecontainer").style.width = '55%';
    }*/
}

function displayYear(){
    var year = new Date();
    document.write(year.getFullYear());
}



function set_style(){
    document.getElementById("style").href = "styles/style1.css";
}

function open_gallery(){
    window.open('gallery.html', '', 'channelmode=yes,fullscreen=yes,location=no,status=no,titlebar=no');
}

//__________________________IMAGE-RELATED___________________________________________
//__________________________________________________________________________________
//__________________________________________________________________________________

var teller = 0;

var m = 1;

function images(){

    var i;
    var j = 1;
    var imgsrc;
    var imagearray = document.getElementsByTagName("img");
    var length = imagearray.length;

    imagearray[0].src = "images/" + m + "/1.png";

    for(i = 1; i < length; i++){

        imgsrc = "images/" + m + "/" + j + ".png";
        j++;
        imagearray[i].src = imgsrc;
    }
}

function nextseries(){

	m++;

	if (m > 6){
		m = 1;
		}

	images();

		return m;
}

function prevseries(){

	m--;

	if (m < 1){
		m = 6;
		}

	images();

		return m;
}

function diashow(){

    var a = 0;

    var agent = navigator.userAgent;

    var foto = 'images/' + m + '/' + teller + '.png';

    if(agent.indexOf('MSIE')>-1){
        
        if (teller++ >= 9){
		teller = 1;
        a = 1;
        }

        foto = 'images/' + m + '/' + teller + '.png';
        document.images[0].src = foto;
        /*document.getElementsByName("xyz")[teller - 1].style.filter ='opacity('+100+')';

        if(teller > 1){
            document.getElementsByName("xyz")[teller -2].style.filter ='opacity('+10+')';
            }
        if(teller == 1 && a == 1){
            document.getElementsByName("xyz")[8].style.filter ='opacity('+10+')';
            }*/
    }

    else{

       if (teller++ >= 9){
		teller = 1;
        a = 1;
        }

        foto = 'images/' + m + '/' + teller + '.png';
        document.images[0].src = foto;
        document.getElementsByName("xyz")[teller - 1].style.opacity = 1;

        if(teller > 1){
            document.getElementsByName("xyz")[teller -2].style.opacity = 0.2;
        }
        if(teller == 1 && a == 1){
            document.getElementsByName("xyz")[8].style.opacity = 0.2;
        }

    }
	showID = setTimeout('diashow()',2500);
}

function stopdiashow(){
	clearTimeout(showID);
}


//__________________________LINKS-NAVBAR___________________________________________
//__________________________________________________________________________________
//__________________________________________________________________________________


function linksorange(){

    var links_left_text = "| <a href='index.html'>index</a> | <a href='#' onclick='open_gallery();'>gallery</a> | ";
    links_left_text += "<a href='column.html'>column</a> | <a href='about.html'>over</a> | ";
    links_left_text += "<a href='links.html'>links</a> | ";
    links_left_text += "<a href='mailto:stefdeb@mac.com?subject=eyezen site'>kontakt</a> | ";
    links_left_text += "<a href='serverup.html'>server-tijden</a>";

    document.write(links_left_text);
}

function linksgreen(){
    var links_green_text = "<a class='green' href='#' onclick='prevseries();'>&lt;&lt;&lt; </a> | ";
    links_green_text += "<a class='green' href='#' onclick='nextseries();'> >>> </a> | ";
    links_green_text += "<a class='green' href='#' onclick='diashow();'> diashow </a> | ";
    links_green_text += "<a class='green' href='#' onclick='stopdiashow();'> stop diashow </a> | ";
    links_green_text += "<a class='green' href='#' onclick='window.close();'> sluit </a>";

    document.write(links_green_text);
}

function linksblue(){

    var links_right_text = "<a class='blue' href='users/login.html'>login</a> | <a class='blue' href='users/logout.html'>logout</a> | ";
    links_right_text += "<a class='blue' href='users/user.html'>mijn pagina</a> | <a class='blue' href='users/account.html'>mijn account</a> |";

    document.write(links_right_text);
}