/* default vars */

var d = document;
var IE   = (navigator.userAgent.indexOf("MSIE") != -1);
var currentTime = new Date()

/* kill frames */

 if (self != top) top.location.href = window.location.href;

/* remove default text in search box */ 
 
 function removeStartText(obj) 
{
	if (obj.value != ""){
		obj.value = "";
	}
}

/* load topnav thingy */
 
sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover); 
 
/* import nifty js stuff for photo enlargement */
 
var photo1 =' <scr' + 'ipt type="text\/ja' + 'vas' + 'cript" src="http://werksman.home.xs4all.nl/cale/js/prototype.js"><\/' + 'sc' + 'ript>';
d.write(photo1); 
var photo2 =' <scr' + 'ipt type="text\/ja' + 'vas' + 'cript" src="http://werksman.home.xs4all.nl/cale/js/scriptaculous.js?load=effects,builder"><\/' + 'sc' + 'ript>';
d.write(photo2); 
var photo3 =' <scr' + 'ipt type="text\/ja' + 'vas' + 'cript" src="http://werksman.home.xs4all.nl/cale/js/lightbox.js"><\/' + 'sc' + 'ript>';
d.write(photo3);   
 
/* detect OS */
 
var WIN = navigator.userAgent.indexOf("Win") != -1;
var MAC = navigator.userAgent.indexOf("Mac") != -1;
var LIN = navigator.userAgent.indexOf("Lin") != -1;


/* rollover banana */

var iversion = -1;
var roll=false;

function version() {
    if (iversion != -1) return roll;

        if (navigator.appName.indexOf("Netscape") != -1) { // Netscape
                if (navigator.userAgent.indexOf("Mozilla/") != -1)
                        iversion = parseFloat(navigator.appVersion)
                else
                        iversion = 1;
                roll = (iversion>=3);
        } else {  // Not netscape.
                if (navigator.appName.indexOf("Internet Explorer") != -1) {
                        if (navigator.userAgent.indexOf("Mozilla/") != -1) 
                                iversion = parseFloat(navigator.appVersion)
                        else
                                iversion = 1;
                } else {
                        iversion = 1;
                }
                roll = (iversion>3);
        }
        return roll;
}

if (version()) {
           but1n        = new Image(140,140);
           but1o        = new Image(140,140);
           but1n.src    = "../img/roll/banana_unpeel.gif";
           but1o.src    = "../img/roll/banana_peel.gif";
           but2n        = new Image(128,176);
           but2o        = new Image(128,176);
           but2n.src    = "http://werksman.home.xs4all.nl/cale/img/books/book_welsh2.jpg";
           but2o.src    = "http://werksman.home.xs4all.nl/cale/img/books/book_welsh.jpg";		   
		   
  

}

function chimg(pic,name) {
                if (roll) {
                        pic.src = name.src;
                } 
}

/* include shortcut icon */
d.write("<link rel=\"shortcut icon\" href=\"http://werksman.home.xs4all.nl/cale/cale.ico\"></link>");


/* ie send to friend */


function mailpage()
{
mail_str = "mailto:?subject=Check out this useful information about  " + d.title;
mail_str += "&body=I thought you might be interested in this webpage: " + d.title;
mail_str += ". It can be found here: " + location.href;
location.href = mail_str;
}