//new browser test
	agent = navigator.userAgent;
	browserVer = (agent.indexOf("Mozilla/3") == -1 &&
			agent.indexOf("Mozilla/4") == -1 &&
			agent.indexOf("Mozilla/5") == -1) ? 0 : 1;
			
	function changeImages() {
	  if (document.images) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
		  document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
		}
	  }
	}

	if (browserVer == 1)
	{
	// main nav
		btn_listening = new Image(109,13);
		btn_listening.src = "_img/btn_listening.gif";
		btn_listening.mo = new Image(109,13);
		btn_listening.mo.src = "_img/btn_listening.mo.gif";
		
		btn_telling = new Image(109,13);
		btn_telling.src = "_img/btn_telling.gif";
		btn_telling.mo = new Image(109,13);
		btn_telling.mo.src = "_img/btn_telling.mo.gif";
		
		btn_showing = new Image(109,13);
		btn_showing.src = "_img/btn_showing.gif";
		btn_showing.mo = new Image(109,13);
		btn_showing.mo.src = "_img/btn_showing.mo.gif";
		
		
		sub_btn_our_approach = new Image(109,13);
		sub_btn_our_approach.src = "_img/sub_btn_our_approach.gif";
		sub_btn_our_approach.mo = new Image(109,13);
		sub_btn_our_approach.mo.src = "_img/sub_btn_our_approach.mo.gif";
		
		sub_btn_client_involve = new Image(109,13);
		sub_btn_client_involve.src = "_img/sub_btn_client_involve.gif"
		sub_btn_client_involve.mo = new Image(109,13);
		sub_btn_client_involve.mo.src = "_img/sub_btn_client_involve.mo.gif";
		
		sub_btn_integration = new Image(109,13);
		sub_btn_integration.src = "_img/sub_btn_integration.gif";
		sub_btn_integration.mo = new Image(109,13);
		sub_btn_integration.mo.src = "_img/sub_btn_integration.mo.gif";
	
		
		sub_btn_our_story = new Image(109,13);
		sub_btn_our_story.src = "_img/sub_btn_our_story.gif";
		sub_btn_our_story.mo = new Image(109,13);
		sub_btn_our_story.mo.src = "_img/sub_btn_our_story.mo.gif";
		
		sub_btn_news = new Image(109,13);
		sub_btn_news.src = "_img/sub_btn_news.gif"
		sub_btn_news.mo = new Image(109,13);
		sub_btn_news.mo.src = "_img/sub_btn_news.mo.gif";
		
		sub_btn_careers = new Image(109,13);
		sub_btn_careers.src = "_img/sub_btn_careers.gif";
		sub_btn_careers.mo = new Image(109,13);
		sub_btn_careers.mo.src = "_img/sub_btn_careers.mo.gif";
		
		
		sub_btn_residential = new Image(109,13);
		sub_btn_residential.src = "_img/sub_btn_residential.gif";
		sub_btn_residential.mo = new Image(109,13);
		sub_btn_residential.mo.src = "_img/sub_btn_residential.mo.gif";
		
		sub_btn_commercial = new Image(109,13);
		sub_btn_commercial.src = "_img/sub_btn_commercial.gif"
		sub_btn_commercial.mo = new Image(109,13);
		sub_btn_commercial.mo.src = "_img/sub_btn_commercial.mo.gif";
		
		sub_btn_additional = new Image(109,13);
		sub_btn_additional.src = "_img/sub_btn_additional.gif";
		sub_btn_additional.mo = new Image(109,13);
		sub_btn_additional.mo.src = "_img/sub_btn_additional.mo.gif";
		
	}