/* 

global.js

mct sr July 2005.
global functions for MWC v5.0

Register listener functions
Icons and new window for external links
Std window opener
*/

// 	 Register listener functions

window.onload = function() 
{
    mwcWindowsAndIcons();
    
}


			
var sPathToIcon		= '/images/nav/extlink.gif';
var sAltLinkText	= 'Open this link in new window';
var sTitleLinkText 	= 'Open this link in new window';
			
function mwcWindowsAndIcons() 
{
// 	 Icon and new window link for external links
//   Icon for non-HTML documents

	if (!document.getElementById || !document.createTextNode || !document.domain) return;
	var vElements = document.getElementsByTagName('a');	
	for (var i = 0; i < vElements.length; i++) 
		{
		if (vElements[i].className == 'extlink')
		{
			// external link handling

			// create new elements
			var oNewHref = document.createElement('a');
			var oNewImage = document.createElement('img');
			var space = document.createTextNode(' ');
						
			// set attributes
			oNewImage.setAttribute('src', sPathToIcon);
			oNewImage.setAttribute('alt', sAltLinkText);
			oNewImage.setAttribute('title', sTitleLinkText);
			oNewHref.setAttribute('href', vElements[i].getAttribute('href'));
			oNewHref.setAttribute('target', '_blank');
			oNewHref.setAttribute('title', sTitleLinkText);
			oNewHref.className = 'new_window_link';
						
			// append new elements
			oNewHref.appendChild(oNewImage);
			vElements[i].parentNode.insertBefore(space, vElements[i].nextSibling);			
			vElements[i].parentNode.insertBefore(oNewHref, vElements[i].nextSibling.nextSibling);			

		}
		
		

		if ((vElements[i].className == 'pdf') || (vElements[i].className == 'doc') || (vElements[i].className == 'xls')  || (vElements[i].className == 'ppt')  || (vElements[i].className == 'zip')  || (vElements[i].className == 'img')  ||  (vElements[i].className == 'other') || (vElements[i].className == 'mpg'))
		{
		
			// downloadable document handling

			// create new elements
			var oNewHref = document.createElement('a');
			var oNewImage = document.createElement('img');
			var space = document.createTextNode(' ');
			var sTypeMessage="";
						
			// setup  attributes
			oNewImage.setAttribute('src', '/images/nav/'+ vElements[i].className + 'link.gif');
			switch (vElements[i].className) 
			{
			   case 'pdf' :
			       sTypeMessage = "PDF";
			       break;
			   case 'doc' :
			       sTypeMessage = "Word document";
				   break;
			   case 'xls' :
			       sTypeMessage = "Excel document";     
				   break;
			   case 'ppt' :
			       sTypeMessage = "Powerpoint document";			       
				   break;
			   case 'zip' :
			       sTypeMessage = "Zip (compressed) file";			       
				   break;
			   case 'jpg' :
			       sTypeMessage = "JPEG image";			       
				   break;
			   case 'gif' :
			       sTypeMessage = "GIF image";			       
				   break;
			   default :
			       sTypeMessage = "document";			       
			} 


			oNewImage.setAttribute('alt', 'Download '+ sTypeMessage);
			oNewImage.setAttribute('title', vElements[i].getAttribute('title'));
			oNewHref.setAttribute('href', vElements[i].getAttribute('href'));
			oNewHref.setAttribute('title', vElements[i].getAttribute('title'));
			oNewHref.className = 'new_window_link';
						
			// append new 
			oNewHref.appendChild(oNewImage);
			vElements[i].parentNode.insertBefore(space, vElements[i].nextSibling);			
			vElements[i].parentNode.insertBefore(oNewHref, vElements[i].nextSibling.nextSibling);			

		}
	}
}

function mwcOpenBrWindow(theURL,winName,features) 
{ 
  window.open(theURL,winName,features);
}