论坛左边的树

function OnItemClick( evt )
{
var dtNow = new Date();
dd = dtNow.getTime() - cTime.getTime();
if( dd < 500 )
return;
cTime = dtNow;

var src;

if( evt == null )
{
// is maybe IE
evt = window.event;
}
else
{
// is maybe Mozilla
src = evt.target;
}

if( evt.srcElement==null )
{
src = evt.target;
}
else
{
src = evt.srcElement;
}

在这里加上

if (src.nodeType == 3)
src = src.parentNode;

以支持 Safari