/* 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(e) {
 	var event;
 	if (!e) event = window.event;
 	else event = e;
 	// Abort if a modifier key is pressed
 	if (event.shiftKey || event.altKey || event.ctrlKey || event.metaKey) {
  		return true;
 	} else {
 	 	// Change "_blank" to something like "newWindow" to load all links in the same new window
 	     var newWindow = window.open(this.getAttribute('href'), '_blank');
 		 if (newWindow) {
 			  if (newWindow.focus) {
 	 			  newWindow.focus();
 			 }
 			 return false;
 		 }
 		 return true;
 	}
}

/* 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 = " [ file opens in a new window ]";
  		// Find all links
  		var links = document.getElementsByTagName('a');
  		var objWarningText;
  		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/.test(link.className)) {
    				// Create an em element containing the new window warning text and insert it after the link text
    				objWarningText = document.createElement("em");
    				objWarningText.appendChild(document.createTextNode(strNewWindowAlert));
    				link.appendChild(objWarningText);
    				link.onclick = openInNewWindow;
   			}
  		}
  		objWarningText = null;
 	}
}

addEvent(window, 'load', getNewWindowLinks);