var agent = navigator.userAgent;
	var styleRoot = "http://www/includes/styles/";
	var mac = agent.indexOf ("Mac") != -1 ? true : false;
	var	win = agent.indexOf ("Win") != -1 ? true : false;
	var opera = agent.indexOf ("Opera") != -1 ? true : false;
	var	webTV = agent.indexOf("WebTV") != -1 ? true : false;
	var ie = false, ns=false, version =null;
	
	if( ! webTV ){	//check not web TV as this can include "IE" in it's user-agent string
	  if ( ! opera ) {
		    ie = agent.indexOf ("MSIE") != -1 ? true : false;
		    if (! ie)
			    ns = agent.indexOf ("Mozilla") != -1 ? true : false;
		    else
			    ns = false;
	  } else {
		  ie = false;
		  ns = false;
		  webTV=false;
	  }
	}//webTV


	var searchTerm = null;
	if (opera)
		searchTerm = "Opera"; // may be followed by space or slash depending upon 'identify as' setting
	if (ie)
		searchTerm = "MSIE ";
	if (ns)
		searchTerm = "Mozilla/";
		
	if ( searchTerm != null ) {					
		version = agent.substr(agent.indexOf (searchTerm) + searchTerm.length );
		var startPos = opera ? 1 : 0;		
		version = version.substring (startPos, version.indexOf ('.'));
	}//if
	
	document.writeln('<LINK REL="STYLESHEET" TYPE="text/css" HREF="/includes/styles/safe_styles.css">');
	
	var styleFileName = "/includes/styles/dom_styles.css";
	if( ns && parseInt(navigator.appVersion) < 6)
		styleFileName  = "/includes/styles/ns_styles.css";

	document.writeln('<LINK REL="STYLESHEET" TYPE="text/css" HREF="'+ styleFileName +'">');

	
	//alert(styleHref+"\n"+menuHref);