<!--
//rollovers...

if(document.images) {
     
		
                            homeoff = new Image();
		homeoff.src = "images/nav/homeoff.gif";
		homeover = new Image();
		homeover.src = "images/nav/homeover.gif";
                
                                                                 		
		labtestingoff = new Image();
		labtestingoff.src = "images/nav/labtestingoff.gif";
		labtestingover = new Image();
		labtestingover.src = "images/nav/labtestingover.gif";
 
                    toxoff = new Image();
		toxoff.src = "images/nav/toxoff.gif";
		toxover = new Image();
		toxover.src = "images/nav/toxover.gif";
 
                          	sampleoff = new Image();
		sampleoff.src = "images/nav/sampleoff.gif";
		sampleover = new Image();
		sampleover.src = "images/nav/sampleover.gif";


                          	livprooff = new Image();
		livprooff.src = "images/nav/LivProoff.gif";
		livproover = new Image();
		livproover.src = "images/nav/LivProover.gif";


                          	contactoff = new Image();
		contactoff.src = "images/nav/contactoff.gif";
		contactover = new Image();
		contactover.src = "images/nav/contactover.gif";


} 

function onoff(imgName,state) {
        if(document.images) {               
		document.images[imgName].src = eval(imgName+state+".src");
        }
}         
//-->