var nn;
nn=1;
setTimeout('change_img()',3000);
function change_img()
{
	try
	{
 if(nn>4) nn=1
 setTimeout('setFocus1('+nn+')',3000);
 nn++;
 tt=setTimeout('change_img()',3000);
    }
    catch(e){}
    	
}
function setFocus1(i)
{
	try
	{
 selectLayer1(i);
    }
 catch(e){}
}
function selectLayer1(i)
{
	try
	{	
		 switch(i)
		 {
		 case 1:
		 document.getElementById("focusPic1").style.display="block";
		 document.getElementById("focusPic2").style.display="none";
		 document.getElementById("focusPic3").style.display="none";
		 document.getElementById("focusPic4").style.display="none";
		 document.getElementById("focusPic1nav").style.display="block";
		 document.getElementById("focusPic2nav").style.display="none";
		 document.getElementById("focusPic3nav").style.display="none";
		 document.getElementById("focusPic4nav").style.display="none";
		 break;
		 case 2:
		 document.getElementById("focusPic1").style.display="none";
		 document.getElementById("focusPic2").style.display="block";
		 document.getElementById("focusPic3").style.display="none";
		 document.getElementById("focusPic4").style.display="none";
		 document.getElementById("focusPic1nav").style.display="none";
		 document.getElementById("focusPic2nav").style.display="block";
		 document.getElementById("focusPic3nav").style.display="none";
		 document.getElementById("focusPic4nav").style.display="none";
		 break;
		 case 3:
		 document.getElementById("focusPic1").style.display="none";
		 document.getElementById("focusPic2").style.display="none";
		 document.getElementById("focusPic3").style.display="block";
		 document.getElementById("focusPic4").style.display="none";
		 document.getElementById("focusPic1nav").style.display="none";
		 document.getElementById("focusPic2nav").style.display="none";
		 document.getElementById("focusPic3nav").style.display="block";
		 document.getElementById("focusPic4nav").style.display="none";
		 break;
		 case 4:
		 document.getElementById("focusPic1").style.display="none";
		 document.getElementById("focusPic2").style.display="none";
		 document.getElementById("focusPic3").style.display="none";
		 document.getElementById("focusPic4").style.display="block";
		 document.getElementById("focusPic1nav").style.display="none";
		 document.getElementById("focusPic2nav").style.display="none";
		 document.getElementById("focusPic3nav").style.display="none";
		 document.getElementById("focusPic4nav").style.display="block";
		 break;
		 }
    }
    catch(e){}
}