/**
 *
 * @access public
 * @return void
 **/
function chcon(id){
var obj,obj2;
var i=1;
while(obj2=document.getElementById("joecontent"+i)){
if (id!=i) {
obj2.style.display="none";
}
i++;
} // while
obj=document.getElementById("joecontent"+id);
if (obj.style.display=="none") {
	obj.style.display="block";
}
else
{
	obj.style.display="none";
}

}