function addEvent(obj, evType, fn) 
{
	if (obj.addEventListener) {
		obj.addEventListener(evType, fn, true);
		return true;
	} else if (obj.attachEvent) {
		var r = obj.attachEvent("on"+evType, fn);
		return r;
	} else {
		return false;
	}
}


function createElement(element) 
{
	if (typeof document.createElementNS != 'undefined') {
		return document.createElementNS('http://www.w3.org/1999/xhtml', element);
	}
	if (typeof document.createElement != 'undefined') {
		return document.createElement(element);
	}
	return false;
}

/**
 * Creates rounded corners on appropriate elements
 * -------------------------------------------------------------------------- */
function initCB()
{
	var divs = document.getElementsByTagName('div');
	var cbDivs = [];
	for (var i = 0; i < divs.length; i++) 
	{
		// Find all div elements with cbb in their class attribute while allowing for multiple class names
		if (/\bcbb\b/.test(divs[i].className)) {
			cbDivs[cbDivs.length] = divs[i];
		}
	}
	// Loop through the found div elements
	var thediv, outer, i1, i2;
	for (var i = 0; i < cbDivs.length; i++) 
	{
	// Save the original outer div for later
		thediv = cbDivs[i];
	// 	Create a new div, give it the original div's class attribute, and replace 'cbb' with 'cb'
		outer = createElement('div');
		outer.className = thediv.className;
		outer.className = thediv.className.replace('cbb', 'cb');
	// Change the original div's class name and replace it with the new div
		thediv.className = 'i3';
		thediv.parentNode.replaceChild(outer, thediv);
	// Create two new div elements and insert them into the outermost div
		i1 = createElement('div');
		i1.className = 'i1';
		outer.appendChild(i1);
		i2 = createElement('div');
		i2.className = 'i2';
		i1.appendChild(i2);
	// Insert the original div
		i2.appendChild(thediv);
	// Insert the top and bottom divs
		insertTop(outer);
		insertBottom(outer);
	}
}

function insertTop(obj) 
{
	// Create the two div elements needed for the top of the box
	d=createElement("div");
	d.className="bt"; // The outer div needs a class name
    d2=createElement("div");
    d.appendChild(d2);
	obj.insertBefore(d,obj.firstChild);
}

function insertBottom(obj) 
{
	// Create the two div elements needed for the bottom of the box
	d=createElement("div");
	d.className="bb"; // The outer div needs a class name
    d2=createElement("div");
    d.appendChild(d2);
	obj.appendChild(d);
}
/**
 * Adds target attribute to open links with rel="external" in a new window.
 * -------------------------------------------------------------------------- */
function externalLinks() 
{
	if (!document.getElementsByTagName) return;
	
	var anchors = document.getElementsByTagName("a");
	
	for (var i=0; i<anchors.length; i++) 
	{
		var anchor = anchors[i];
		if (anchor.getAttribute("href") && 	anchor.getAttribute("rel") == "external") {
			anchor.target = "_blank";	
		}		
	}
}



/**
 * Removes the rectangle that appears around links in Firefox.
 * -------------------------------------------------------------------------- */
function removeRectangle () 
{
    var lnks = document.links;
    if (!lnks) { return false; }
	
	var lg = lnks.length;
	
	for (var i = 0; i < lg; i++) 
	{
        lnks[i].onmousedown = function() 
		{
        	this.blur();
        	return false;
        };
    }
}

if(document.getElementById && document.createTextNode)
{
	addEvent(window, 'load', initCB);
	addEvent(window, 'load', externalLinks);
	addEvent(window, 'load', removeRectangle);
}