/// detect KHTML-based browsers
Calendar.is_khtml = /Konqueror|Safari|KHTML/i.test(navigator.userAgent);
// BEGIN: UTILITY FUNCTIONS; beware that these might be moved into a separate
// library, at some point.
Calendar.getAbsolutePos = function(el) {
var SL = 0, ST = 0;
var is_div = /^div$/i.test(el.tagName);
if (is_div && el.scrollLeft)
SL = el.scrollLeft;
if (is_div && el.scrollTop)
ST = el.scrollTop;
var r = { x: el.offsetLeft - SL, y: el.offsetTop - ST };
if (el.offsetParent) {
var tmp = this.getAbsolutePos(el.offsetParent);
r.x += tmp.x;
r.y += tmp.y;
}
return r;
};
Calendar.isRelated = function (el, evt) {
var related = evt.relatedTarget;
if (!related) {
var type = evt.type;
if (type == "mouseover") {
related = evt.fromElement;
} else if (type == "mouseout") {
related = evt.toElement;
}
}
while (related) {
if (related == el) {
return true;
}
related = related.parentNode;
}
return false;
};
Calendar.removeClass = function(el, className) {
if (!(el && el.className)) {
return;
}
var cls = el.className.split(" ");
var ar = new Array();
for (var i = cls.length; i > 0;) {
if (cls[--i] != className) {
ar[ar.length] = cls[i];
}
}
el.className = ar.join(" ");
};
Calendar.addClass = function(el, className) {
Calendar.removeClass(el, className);
el.className += " " + className;
};
// FIXME: the following 2 functions totally suck, are useless and should be replaced immediately.
Calendar.getElement = function(ev) {
var f = Calendar.is_ie ? window.event.srcElement : ev.currentTarget;
while (f.nodeType != 1 || /^div$/i.test(f.tagName))
f = f.parentNode;
return f;
};
Calendar.getTargetElement = function(ev) {
var f = Calendar.is_ie ? window.event.srcElement : ev.target;
while (f.nodeType != 1)
f = f.parentNode;
return f;
};
Calendar.stopEvent = function(ev) {
ev || (ev = window.event);
if (Calendar.is_ie) {
ev.cancelBubble = true;
ev.returnValue = false;
} else {
ev.preventDefault();
ev.stopPropagation();
}
return false;
};
Calendar.addEvent = function(el, evname, func) {
if (el.attachEvent) { // IE
el.attachEvent("on" + evname, func);
} else if (el.addEventListener) { // Gecko / W3C
el.addEventListener(evname, func, true);
} else {
el["on" + evname] = func;
}
};
Calendar.removeEvent = function(el, evname, func) {
if (el.detachEvent) { // IE
el.detachEvent("on" + evname, func);
} else if (el.removeEventListener) { // Gecko / W3C
el.removeEventListener(evname, func, true);
} else {
el["on" + evname] = null;
}
};
Calendar.createElement = function(type, parent) {
var el = null;
if (document.createElementNS) {
// use the XHTML namespace; IE won't normally get here unless
// _they_ "fix" the DOM2 implementation.
el = document.createElementNS("http://www.w3.org/1999/xhtml", type);
