<div class="codetitle"> <span><a style="CURSOR: pointer" data="50423" class="copybut" id="copybut50423" onclick="doCopy('code50423')"><u>复制代码</u></a></span> 代码如下:</div> <div class="codebody" id="code50423"> <br> <br> <br><meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <br><title>javascript object</title> <br> <br><input id="aaa"> <br><input type="button" onclick="check('aaa')" value="checkaaa"> <br><input type="button" onclick="check('aaffdssfg')" value="checkother"> <br><script language="javascript"> <BR><!-- <BR>function check(strObj) <BR>{ <BR>if(typeof(eval("document.all."+strObj))!= "undefined") <BR>{ <BR>alert(strObj +" is an object"); <BR>} <BR>else <BR>{ <BR>alert(strObj +" is not an object"); <BR>} <BR>} <BR>//--> <BR></script> <br> <br> </div>
