<?xml version="1.0" encoding="utf-8"?>

<snippet name = "查找对象" description = "用于在 DOM 中定位指定对象的函数。变量“theDoc”用于进行递归，不像在正常情况下那样进行传递。" preview="code" type="block">

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<![CDATA[// Example: obj = findObj("image1");

function findObj(theObj, theDoc)

{

  var p, i, foundObj;

  

  if(!theDoc) theDoc = document;

  if( (p = theObj.indexOf("?")) > 0 && parent.frames.length)

  {

    theDoc = parent.frames[theObj.substring(p+1)].document;

    theObj = theObj.substring(0,p);

  }

  if(!(foundObj = theDoc[theObj]) && theDoc.all) foundObj = theDoc.all[theObj];

  for (i=0; !foundObj && i < theDoc.forms.length; i++) 

    foundObj = theDoc.forms[i][theObj];

  for(i=0; !foundObj && theDoc.layers && i < theDoc.layers.length; i++) 

    foundObj = findObj(theObj,theDoc.layers[i].document);

  if(!foundObj && document.getElementById) foundObj = document.getElementById(theObj);

  

  return foundObj;

}

]]>

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</snippet>

