function SelectMenuItem(obj,name)
{
 obj.src = "my_images/m_"+name+"_o.jpg";
}
function DeselectMenuItem(obj,name)
{
 obj.src = "my_images/m_"+name+"_u.jpg";
}


function SelectMenuItemGif(obj,name)
{
 obj.src = "my_images/m_"+name+"_o.gif";
}
function DeselectMenuItemGif(obj,name)
{
 obj.src = "my_images/m_"+name+"_u.gif";
}

function ShowBibtex(tex)
{
   win = window.open('','','width=700,height=210,scrollbars=yes,resizable=yes,location=no,directories=no,status=no,menubar=no,copyhistory=no');
     win.document.write('<pre>'+tex+'</pre>');
}