function show(aa,bb,cc)
{
       document.all.div1.style.display="none";
       document.all.div2.style.display="none";
       document.all.div3.style.display="none";
       document.all.div4.style.display="none";
       document.all.div5.style.display="none";
       document.all.div6.style.display="none";
       document.all.div7.style.display="none";
       document.all.div8.style.display="none";
       document.all.div9.style.display="none";
       document.all.div10.style.display="none";
       document.all.div11.style.display="none";
	   document.all.div12.style.display="none";
       document.all.nav1.background="";
       document.all.nav2.background="";
       document.all.nav3.background="";
       document.all.nav4.background="";
       document.all.nav5.background="";
       document.all.nav6.background="";
       document.all.nav7.background="";
       document.all.nav8.background="";
       document.all.nav9.background="";
       document.all.nav10.background="";
       document.all.nav11.background="";
	   document.all.nav12.background="";
       document.all.words1.style.color="";
       document.all.words2.style.color="";
       document.all.words3.style.color="";
       document.all.words4.style.color="";
       document.all.words5.style.color="";
       document.all.words6.style.color="";
       document.all.words7.style.color="";
       document.all.words8.style.color="";
       document.all.words9.style.color="";        
       document.all.words10.style.color="";
       document.all.words11.style.color="";
	   document.all.words12.style.color="";
       aa.style.display="block";
       bb.background="images/l_b01.jpg";
       cc.style.color="#07528B";
}