ns4 = (document.layers)? true:false
ie4 = (document.all)? true:false



function showit(x)
{
if(ns4)
{
	if (x==1)
		{
		document.second.visibility  = "hide"		
		document.first.visibility = "show"
       document.third.visibility  = "hide"
		}
		
	if (x==2)
		{
		document.first.visibility  = "hide"		
		document.second.visibility = "show"
	    document.third.visibility  = "hide"
		}	
	
	if (x==3)
		{
		document.first.visibility  = "hide"
		document.second.visibility = "hide"
		document.third.visibility  = "show"		
		}
		
	
					
}


if(ie4)
{
	if (x==1)
		{
		second.style.visibility = "hidden"
		first.style.visibility = "visible"
	    third.style.visibility = "hidden"
		}
		
	if (x==2)
		{
		first.style.visibility = "hidden"	
		second.style.visibility = "visible"
		third.style.visibility = "hidden"
		}
		
	if (x==3)
		{
		first.style.visibility = "hidden"
		second.style.visibility = "hidden"
		third.style.visibility = "visible"		
		}
}

}