/* ExtOpen.js
 * Copyright 2001-2006, aijalon
 * Maintenance:
 *   William Bickford (12/19/2006)
 * Authors:
 *   Gregory H. Payne
 *   William Bickford
 *
 * EXTERNAL LINKS OPEN IN A NEW WINDOW (_blank).
 */
var possibleDomains = new Array();
var d = document.domain + "";
var cursorLeft = 0;
var cursorRight = d.indexOf('.');
if(typeof(matchDomains)=="object" && matchDomains.length>0) {
	for(i=0; i<matchDomains.length; i++) {
		possibleDomains[possibleDomains.length] = matchDomains[i];
	}
}
else {
	while( cursorRight!=-1 ) {
		var temp = d.substring( cursorLeft, cursorRight );
		cursorLeft = cursorRight + 1;
		if( temp.indexOf("www")==-1 )
			possibleDomains[possibleDomains.length] = temp;
		cursorRight = d.indexOf('.',cursorLeft);
	}
}

function is_external(L) {
	L = L.toLowerCase();
	// This i MUST be local.
	for( var i=0; i<possibleDomains.length; i++ ) {
		// If the link is a document, and the user wants them to open in a new window.
		if( possibleDomains[i]=="documents" &&
			(L.indexOf(".pdf")!=-1 ||
			 L.indexOf(".doc")!=-1 ||
			 L.indexOf(".xls")!=-1 ||
			 L.indexOf(".ppt")!=-1) )
		{
			return true;
		}
		// If the link matches a possible domain name, then it is NOT a possible domain name.
		if( L.indexOf(possibleDomains[i])!=-1 || L.indexOf(":")==-1 )
		{
			return false;
		}
	}
	return true;
}

for( var i=0; i<document.links.length; i++ ) {
	if( is_external(document.links[i].href) )
		document.links[i].target = '_blank';
}