/* 
Derived from a script by Alejandro Gervasio. 
Modified to work in FireFox by Stefan Mischook for Killersites.com

How it works: just apply the CSS class of 'column' to your pages' main columns.
*/
matchColumns=function()
{ 
     var divs,contDivs,maxHeight,divHeight,d; 
     var rowdivs;
	
     // get all <div> elements in the document 
     rowdivs=document.getElementsByTagName('div'); 

     // iterate over all <div> elements in the document 
     for(var j=0;j<rowdivs.length;j++)
     { 
        if(rowdivs[j].className=='articlerow')
        {
            divs=rowdivs[j].getElementsByTagName('div'); 
            contDivs=[];

            // initialize maximum height value 
            maxHeight=0; 
             
            for(var i=0;i<divs.length;i++)
            { 
                // make collection with <div> elements with class attribute 'container' 
                if((/\barticleblue\b/.test(divs[i].className)) || 
                   (/\barticleyellow\b/.test(divs[i].className)) || 
                   (/\barticlered\b/.test(divs[i].className))) 
                { 
                    d=divs[i]; 
                    contDivs[contDivs.length]=d; 
                    
                    // determine height for <div> element 
                    if(d.offsetHeight)
                    { 
                        divHeight=d.offsetHeight; 					
                        } 
                    else if(d.style.pixelHeight)
                    { 
                        divHeight=d.style.pixelHeight;					 
                    } 

                    // calculate maximum height 
                    maxHeight=Math.max(maxHeight,divHeight); 
                } 
            } 

            // assign maximum height value to all of container <div> elements 
            for(var i=0;i<contDivs.length;i++)
            { 
                contDivs[i].style.height=maxHeight + "px"; 
            } 
        }
    }
} 

// Runs the script when page loads 

window.onload=function(){ 

     if(document.getElementsByTagName){ 

          matchColumns();			 

     } 

}

/*
addEvent function from http://www.quirksmode.org/blog/archives/2005/10/_and_the_winner_1.html
*/
function addEvent( obj, type, fn )
{
	if (obj.addEventListener)
		obj.addEventListener( type, fn, false );
	else if (obj.attachEvent)
	{
		obj["e"+type+fn] = fn;
		obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
		obj.attachEvent( "on"+type, obj[type+fn] );
	}
}

function removeEvent( obj, type, fn )
{
	if (obj.removeEventListener)
		obj.removeEventListener( type, fn, false );
	else if (obj.detachEvent)
	{
		obj.detachEvent( "on"+type, obj[type+fn] );
		obj[type+fn] = null;
		obj["e"+type+fn] = null;
	}
}

/*
Create the new window
*/
function openInNewWindow() {
	// Change "_blank" to something like "newWindow" to load all links in the same new window
    var newWindow = window.open(this.getAttribute('href'), '_blank');
    newWindow.focus();
    return false;
}

/*
Add the openInNewWindow function to the onclick event of links with a class name of "new-window"
*/
function getNewWindowLinks() {
	// Check that the browser is DOM compliant
	if (document.getElementById && document.createElement && document.appendChild) {
		// Change this to the text you want to use to alert the user that a new window will be opened
		var strNewWindowAlert = " ";
		// Find all links
		var links = document.getElementsByTagName('a');
		var objWarningText;
		var strWarningText;
		var link;
		for (var i = 0; i < links.length; i++) {
			link = links[i];
			// Find all links with a class name of "non-html"
			if (/\bnon\-html\b/.exec(link.className)) {
				// Create an em element containing the new window warning text and insert it after the link text
				objWarningText = document.createElement("em");
				strWarningText = document.createTextNode(strNewWindowAlert);
				objWarningText.appendChild(strWarningText);
				link.appendChild(objWarningText);
				link.onclick = openInNewWindow;
			}
		}
		objWarningText = null;
	}
}

addEvent(window, 'load', getNewWindowLinks);