/*
This script is copyright (c) 2006 Elliot Swan under the
Creative Commons Attribution-ShareAlike 2.5 license:
http://creativecommons.org/licenses/by-sa/2.5/

More information on this script can be found at:
http://www.elliotswan.com/2006/06/07/rounded-images/
*/

window.onload = function() { ES2.Round.create('imagewrapper'); }

var ES = new Object();

ES.Round =	{
create	:	function(wrapper) {
			for(var i = 1; 4 >= i;  i++) {
				var curve			= document.createElement('span');
					curve.className	= 'curve'+i;
				var target			= document.getElementById(wrapper);
				target.appendChild(curve);
				}
			}
}


var ES2 = new Object();

ES2.Round =	{
create	:	function(wrapper) {
		    var elements = getElementsByClassName(wrapper, 'div');
		    for (var n in elements) {
			for(var i = 1; 4 >= i;  i++) {
				var curve			= document.createElement('span');
				curve.className		= 'curve'+i;
     	 			var target = elements[n];
				target.appendChild(curve);
				}
			}
		    }
}



var getElementsByClassName = function (className, tag, elm){
	if (document.getElementsByClassName) {
		getElementsByClassName = function (className, tag, elm) {
			elm = elm || document;
			var elements = elm.getElementsByClassName(className),
				nodeName = (tag)? new RegExp("\\b" + tag + "\\b", "i") : null,
				returnElements = [],
				current;
			for(var i=0, il=elements.length; i<il; i+=1){
				current = elements[i];
				if(!nodeName || nodeName.test(current.nodeName)) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	else if (document.evaluate) {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = "",
				xhtmlNamespace = "http://www.w3.org/1999/xhtml",
				namespaceResolver = (document.documentElement.namespaceURI === xhtmlNamespace)? xhtmlNamespace : null,
				returnElements = [],
				elements,
				node;
			for(var j=0, jl=classes.length; j<jl; j+=1){
				classesToCheck += "[contains(concat(' ', @class, ' '), ' " + classes[j] + " ')]";
			}
			try	{
				elements = document.evaluate(".//" + tag + classesToCheck, elm, namespaceResolver, 0, null);
			}
			catch (e) {
				elements = document.evaluate(".//" + tag + classesToCheck, elm, null, 0, null);
			}
			while ((node = elements.iterateNext())) {
				returnElements.push(node);
			}
			return returnElements;
		};
	}
	else {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = [],
				elements = (tag === "*" && elm.all)? elm.all : elm.getElementsByTagName(tag),
				current,
				returnElements = [],
				match;
			for(var k=0, kl=classes.length; k<kl; k+=1){
				classesToCheck.push(new RegExp("(^|\\s)" + classes[k] + "(\\s|$)"));
			}
			for(var l=0, ll=elements.length; l<ll; l+=1){
				current = elements[l];
				match = false;
				for(var m=0, ml=classesToCheck.length; m<ml; m+=1){
					match = classesToCheck[m].test(current.className);
					if (!match) {
						break;
					}
				}
				if (match) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	return getElementsByClassName(className, tag, elm);
};