5.sohu的getObject(),对W3C DOM/ MSIE 4 DOM/NN 4 DOM.. note: this won't find nested layers

function getObject(objectId) ...{
if(document.getElementById && document.getElementById(objectId)) ...{
// W3C DOM
return document.getElementById(objectId);
} else if (document.all && document.all(objectId)) ...{
// MSIE 4 DOM
return document.all(objectId);
} else if (document.layers && document.layers[objectId]) ...{
// NN 4 DOM.. note: this won't find nested layers
return document.layers[objectId];
} else ...{
return false;
}
} // getObject
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