function setSessionVar(session_var, var_value, var_toggle_value)
{
if(typeof(var_toggle_value) == "undefined")
  var_toggle_value = "";
else
  var_toggle_value = "&val_toggle="+var_toggle_value;
$.ajax({
 type: "POST",
 dataType: "html",
 url: "/ajaxfiles/general/sessionvar.php",
 data: "var="+session_var+"&val="+var_value+var_toggle_value,
 error: function(msg) { alert("Error: " + msg); }
});
}