// JavaScript Document
if(document.images) {
_home_on=new Image();
		_home_on.src="../../images/homered.png";
		
_home_off=new Image();
		_home_off.src="../../images/home.png";
		
_current_on=new Image();
		_current_on.src="../../images/currentresearchred_nav.png";
		
_current_off=new Image();
		_current_off.src="../../images/currentresearch_nav.png";
		
_past_on=new Image();
		_past_on.src="../../images/pastresearchred_nav.png";
		
_past_off=new Image();
		_past_off.src="../../images/pastresearch_nav.png";
		
_recent_on=new Image();
		_recent_on.src="../../images/recentpubred_nav.png";
		
_recent_off=new Image();
		_recent_off.src="../../images/recentpub_nav.png";
		
_person_on=new Image();
		_person_on.src="../../images/labperred_nav.png";
		
_person_off=new Image();
		_person_off.src="../../images/labper_nav.png";

_bio_on=new Image();
		_bio_on.src="../../images/bioinfored_nav.png";
		
_bio_off=new Image();
		_bio_off.src="../../images/bioinfo_nav.png";
		
_book_on=new Image();
		_book_on.src="../../images/bookred_nav.png";
		
_book_off=new Image();
		_book_off.src="../../images/book_nav.png";
		
_overview_on=new Image();
		_overview_on.src="../../images/lab_overviewred_nav.png";
		
_overview_off=new Image();
		_overview_off.src="../../images/lab_overview_nav.png";
		
_herz_on=new Image();
		_herz_on.src="../../images/herzlabred_nav.png";
		
_herz_off=new Image();
		_herz_off.src="../../images/herzlab_nav.png";				

		
}
		
		function img_act(imgName) {
		             {
					 if (document.images) { 
		             imgOn = eval(imgName + "on.src");
		             document [imgName].src = imgOn;}
		             }
		     }
		
		function img_inact(imgName) {
		             {
					if (document.images) { 
		             imgOff = eval(imgName + "off.src");
		             document [imgName].src = imgOff;}
		             }
		    }