function setCheckboxes(theForm, elementName, isChecked)
{
var chkboxes = document.forms[theForm].elements[elementName];
var count = chkboxes.length;

if (count) 
{
for (var i = 0; i < count; i++) 
{
chkboxes[i].checked = isChecked;
}
} 
else 
{
chkboxes.checked = isChecked;
} 

return true;
}
window.status = "{PRIVATE_MESSAGE_INFO}";