var agt=navigator.userAgent.toLowerCase();
    var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
    var is_win    = ((agt.indexOf("win")!=-1) || (agt.indexOf("16bit")!=-1) );
    var is_mac    = (agt.indexOf("mac")!=-1);
    var is_opera  = (agt.indexOf("opera") != -1);
    var is_konq   = (agt.indexOf("konquer") != -1);
	var is_iphone   = (agt.indexOf("iphone") != -1);
	
	var is_ff2     = ((agt.indexOf("firefox/2") != -1) && (agt.indexOf("opera") == -1));
	var is_ff3     = ((agt.indexOf("firefox/3") != -1) && (agt.indexOf("opera") == -1));
	var is_ie6     = ((agt.indexOf("msie 6") != -1) && (agt.indexOf("opera") == -1));
	var is_ie7     = ((agt.indexOf("msie 7") != -1) && (agt.indexOf("opera") == -1));
	var is_ie8     = ((agt.indexOf("msie 8") != -1) && (agt.indexOf("opera") == -1));
	
	var oHEAD=document.getElementsByTagName('HEAD').item(0);
	var nLink=document.createElement('LINK');
	nLink.rel="stylesheet";
	nLink.type="text/css";	
    nLink.media="screen";	

	if (is_ie6) {
       nLink.href="/layout/layout_ie6.css";
    }
	else if (is_ie7) {
       nLink.href="/layout/layout_ie7.css";
    }
	else if (is_ie8) {
       nLink.href="/layout/layout_ie8.css";
    }
	else if (is_iphone) {
       nLink.href="/layout/layout_iphone.css";
   }
	else {
       nLink.href="/layout/layout.css";
    }
	
	var nCss2Style=document.getElementsByTagName('STYLE').item(0);
	if(nLink.href.length)oHEAD.replaceChild(nLink,nCss2Style);

    function link_blur(){
        var links = document.getElementsByTagName("a");
        for (i=0; i<links.length; i++) {
            var link = links[i];
            link.onfocus=blur;
        }
    }

//SCRIPT VOOR HET OPENEN VAN NIEUW VENSTER MET EEN FOTO                         
                                      function imgopen(imageName,imageWidth,imageHeight,alt) { 

                                         var adj=10
                                         var w = screen.width;
                                         var h = screen.height;
                                         var byFactor=1;
                                         var bgcolor="#fff9f0";
                                         var hugger= "hug image";
                                         var hugMargin = 0;
                                 
                                         if(w<740){
                                                         var lift=0.90;
                                         }
                                         if(w>=740 & w<835){
                                                         var lift=0.91;
                                         }
                                         if(w>=835){
                                                         var lift=0.93;
                                         }
                                         if (imageWidth>w){      
                                                         byFactor = w / imageWidth;                      
                                                         imageWidth = w;
                                                         imageHeight = imageHeight * byFactor;
                                         }
                                         if (imageHeight>h-adj){
                                                         byFactor = h / imageHeight;
                                                         imageWidth = (imageWidth * byFactor);
                                                         imageHeight = h; 
                                         }
                                                                 
                                         var scrWidth = w-adj;
                                         var scrHeight = (h*lift)-adj;
                                 
                                         if (imageHeight>scrHeight){
                                                                         imageHeight=imageHeight*lift;
                                                         imageWidth=imageWidth*lift;
                                         }
                                 
                                         var posLeft=0;
                                         var posTop=0;
                                 
                                         if (hugger == "hug image"){
                                                         if (hugMargin == ""){
                                                                         hugMargin = 0;
                                                         }
                                                         var scrHeightTemp = imageHeight - 0 + 2*hugMargin;
                                                         if (scrHeightTemp < scrHeight) {
                                                 scrHeight = scrHeightTemp;
                                                         } 
                                                         var scrWidthTemp = imageWidth - 0 + 2*hugMargin;
                                                         if (scrWidthTemp < scrWidth) {
                                                 scrWidth = scrWidthTemp;
                                                         }
                                                         
                                                         if (scrHeight<100){scrHeight=100;}
                                                         if (scrWidth<100){scrWidth=100;}
                                 
                                                         posTop =  ((h-(scrHeight/lift)-adj)/2);
                                                         posLeft = ((w-(scrWidth)-adj)/2);
                                                 }
                                 
                                         if (imageHeight > (h*lift)-adj || imageWidth > w-adj){
                                                 imageHeight=imageHeight-adj;
                                                 imageWidth=imageWidth-adj;
                                         }
                                         posTop = parseInt(posTop);
                                         posLeft = parseInt(posLeft);            
                                         scrWidth = parseInt(scrWidth); 
                                         scrHeight = parseInt(scrHeight);
                                         
                                         var agt=navigator.userAgent.toLowerCase();
                                         if (agt.indexOf("opera") != -1){
                                                         var args= new Array();
                                                         args[0]='parent';
                                                         args[1]=imageName;
                                                         var i ; document.MM_returnValue = false;
                                                         for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
                                         } else {
                                         newWindow = window.open("vwd_justso.htm","newWindow","width="+scrWidth+",height="+scrHeight+",left="+posLeft+",top="+posTop);
                                         newWindow.document.open();
                                         newWindow.document.write('<html><title>'+alt+'</title><body leftmargin="0" topmargin="0" marginheight="0" marginwidth="0" bgcolor='+bgcolor+' onBlur="self.close()" onClick="self.close()">');  
                                         newWindow.document.write('<table width='+imageWidth+' border="0" cellspacing="0" cellpadding="0" align="center" height='+scrHeight+' ><tr><td>');
                                         newWindow.document.write('<img src="'+imageName+'" width='+imageWidth+' height='+imageHeight+' alt="venster sluit bij muisklik" >'); 
                                         newWindow.document.write('</td></tr></table></body></html>');
                                         newWindow.document.close();
                                         newWindow.focus();
       }
    }


    function blur(){
        this.blur();
    }
        
    function doInit () {
      link_blur();
    }
        
    window.onload = doInit;