function my_getbyid(id)
{
 itm = null;

 if (document.getElementById)
 {
 itm = document.getElementById(id);
 }
 else if (document.all)
 {
 itm = document.all[id];
 }
 else if (document.layers)
 {
 itm = document.layers[id];
 }

 return itm;
}
function toggleview(id)
{
 if ( ! id ) return;

 if ( itm = my_getbyid(id) )
 {
 if (itm.style.display == "none")
 {
 my_show_div(itm);
 }
 else
 {
 my_hide_div(itm);
 }
 }
}

function my_hide_div(itm)
{
 if ( ! itm ) return;
 itm.style.display = "none";
}

function my_show_div(itm)
{
 if ( ! itm ) return;
 itm.style.display = "";
}