diff -r e3d7322305bf -r 5e1f1e916419 punbb/include/js/common.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/punbb/include/js/common.js	Sat Apr 05 23:56:45 2008 -0400
@@ -0,0 +1,205 @@
+var Punbb = {
+	/* attach FN to WINDOW.ONLOAD handler */
+	addLoadEvent: function(fn)
+	{
+		var x = window.onload;
+		window.onload = (x && typeof x=='function') ? function(){x();fn()} : fn;
+	},
+	/* return TRUE if node N has class X, else FALSE */
+	hasClass: function(n, x)
+	{
+		return (new RegExp('\\b' + x + '\\b')).test(n.className)
+	},
+	/* add X class to N node, return TRUE if added, FALSE if already exists */
+	addClass: function(n, x)
+	{
+		if (Punbb.hasClass(n, x)) return false;
+		else n.className += ' ' + x;
+		return true;
+	},
+	/* remove X class from N node, return TRUE if removed, FALSE if not present */
+	removeClass: function(n, x)
+	{
+		if (!Punbb.hasClass(n, x)) return false;
+		x = new RegExp('\\s*\\b' + x + '\\b', 'g');
+		n.className = n.className.replace(x, '');
+		return true;
+	},
+	/* blink node N twice */
+	blink: function(n, i)
+	{
+		if (typeof i == 'undefined') i = 2;
+		var x = n.style.visibility;
+		if (i && x!='hidden')
+		{
+			n.style.visibility = 'hidden';
+			setTimeout(function(){n.style.visibility=x}, 200);
+			setTimeout(function(){Punbb.blink(n,i-1)}, 400);
+		}
+	},
+	/* return true if node N scrolled into view, else false (y axis only) */
+	onScreen: function(n)
+	{
+		function pageYOffset() // return number of pixels page has scrolled
+		{
+			var y = -1;
+			if (self.pageYOffset) y = self.pageYOffset; // all except IE
+			else if (document.documentElement && document.documentElement.scrollTop)
+				y = document.documentElement.scrollTop; // IE 6 Strict
+			else if (document.body) y = document.body.scrollTop; // all other IE ver
+			return y;
+		}
+		function innerHeight() // return inner height of browser window
+		{
+			var y = -1;
+			if (self.innerHeight) y = self.innerHeight; // all except IE
+			else if (document.documentElement && document.documentElement.clientHeight)
+				y = document.documentElement.clientHeight; // IE 6 Strict Mode
+			else if (document.body) y = document.body.clientHeight; // all other IE ver
+			return y;
+		}
+		function nodeYOffset(n) // return y coordinate of node N
+		{
+			var y = n.offsetTop;
+			n = n.offsetParent;
+			return n ? y += nodeYOffset(n) : y;
+		}
+		var screenTop = pageYOffset();
+		var screenBottom = screenTop + innerHeight();
+		var nodeTop = nodeYOffset(n);
+		var nodeBottom = nodeTop + n.clientHeight;
+		return nodeTop >= screenTop && nodeBottom < screenBottom;
+	},
+	/* apply FN to every ARR item, return array of results */
+	map: function(fn, arr)
+	{
+		for (var i=0,len=arr.length; i<len; i++)
+		{
+			arr[i] = fn(arr[i])
+		}
+		return arr;
+	},
+	/* return first index where FN(ARR[i]) is true or -1 if none */
+	find: function(fn, arr)
+	{
+		for (var i=0,len=arr.length; i<len; i++)
+		{
+			if (fn(arr[i])) return i;
+		}
+		return -1;
+	},
+	/* return array of elements for which FN(ARR[i]) is true */
+	arrayOfMatched: function(fn, arr)
+	{
+		matched = [];
+		for (var i=0,len=arr.length; i<len; i++)
+		{
+			if (fn(arr[i])) matched.push(arr[i])
+		}
+		return matched;
+	},
+	/* flattens multi-dimentional arrays into simple arrays */
+	flatten: function(arr)
+	{
+		flt = [];
+		for (var i=0,len=arr.length; i<len; i++)
+		{
+			if (typeof arr[i] == 'object' && arr.length) {
+				flt.concat(Punbb.flatten(arr[i]))
+				alert('length1!!'+ arr.length);
+				//x.hasChildNodes()
+			}
+			else flt.push(arr[i])
+		}
+		return flt
+	},
+	/* check FORM's required (REQ_) fields */
+	validateForm: function(form)
+	{
+		var elements = form.elements;
+		var fn = function(x) { return x.name && x.name.indexOf('req_')==0 };
+		var nodes = Punbb.arrayOfMatched(fn, elements);
+		fn = function(x) { return /^\s*$/.test(x.value) };
+		var empty = Punbb.find(fn, nodes);
+		if (empty > -1)
+		//if (Punbb.find(fn, nodes) > -1)
+		{
+			var n = document.getElementById('req-msg');
+			Punbb.removeClass(n, 'frm-warn');
+			var newlyAdded = Punbb.addClass(n, 'frm-error');
+			if (!Punbb.onScreen(n))
+			{
+				n.scrollIntoView(); // method not in W3C DOM, but fully cross-browser?
+				setTimeout(function(){Punbb.blink(n)}, 500);
+			}
+			else if (!newlyAdded) Punbb.blink(n);
+			if (Punbb.onScreen(nodes[empty])) nodes[empty].focus();
+			return false;
+		}
+		return true;
+	},
+	/* attach form validation function to submit-type inputs */
+	attachValidateForm: function()
+	{
+		var forms = document.forms;
+		for (var i=0,len=forms.length; i<len; i++)
+		{
+			var elements = forms[i].elements;
+			var fn = function(x) { return x.name && x.name.indexOf('req_')==0 };
+			if (Punbb.find(fn, elements) > -1)
+			{
+				fn = function(x) { return x.type && (x.type=='submit' && x.name!='cancel') };
+				var nodes = Punbb.arrayOfMatched(fn, elements)
+				var formRef = forms[i];
+				fn = function() { return Punbb.validateForm(formRef) };
+				//TODO: look at passing array of node refs instead of forum ref
+				//fn = function() { return Punbb.checkReq(required.slice(0)) };
+				nodes = Punbb.map(function(x){x.onclick=fn}, nodes);
+			}
+		}
+	},
+	attachWindowOpen: function()
+	{
+		if (!document.getElementsByTagName) return;
+		var nodes = document.getElementsByTagName('a');
+		for (var i=0; i<nodes.length; i++)
+		{
+			if (Punbb.hasClass(nodes[i], 'exthelp')) // || nodes[i].getAttribute('rel') == 'external')
+				nodes[i].onclick = function() { window.open(this.href); return false; };
+		}
+	},
+	autoFocus: function()
+	{
+		var nodes = document.getElementById('afocus');
+		if (!nodes || window.location.hash.replace(/#/g,'')) return;
+		nodes = nodes.all ? nodes.all : nodes.getElementsByTagName('*');
+		// TODO: make sure line above gets nodes in display-order across browsers
+		var fn = function(x) { return x.tagName.toUpperCase()=='TEXTAREA' || (x.tagName.toUpperCase()=='INPUT' && (x.type=='text') || (x.type=='password')) };
+		var n = Punbb.find(fn, nodes);
+		if (n > -1) nodes[n].focus();
+	}
+}
+Punbb.addLoadEvent(Punbb.attachValidateForm);
+Punbb.addLoadEvent(Punbb.attachWindowOpen);
+Punbb.addLoadEvent(Punbb.autoFocus);
+
+/* A handful of functions in this script have been released into the Public
+   Domain by Shawn Brown or other authors. Although I, Shawn Brown, do not
+   believe that it is legally necessary to note which parts of a Copyrighted
+   work are based on Public Domain content, a list of the Public Domain
+   code (functions and methods) contained in this file is included below:
+   
+   * addLoadEvent: Released into the Public Domain by Shawn Brown and
+        based on Simon Willison's Public Domain function of the same name.
+   * hasClass, addClass & removeClass: Released into the Public Domain
+        by Shawn Brown.
+   * onScreen: Released into the Public Domain by Shawn Brown and based,
+        in-part, on Peter Paul-Koch's Public Domain node-position functions.
+   * map, find, arrayOfMatched & flatten: These basic functional methods
+        have been released into the Public Domain by Shawn Brown.
+
+   It is entirely possible that, in the future, someone may contribute code
+   that is in the Public Domain but not note it as such. This should not be
+   a problem, but one should keep in mind that the list provided here is known
+   to be complete and accurate only up until 24-JUNE-2007.
+*/
\ No newline at end of file