js/html光标定位的实现代码

复制代码 代码如下:

  <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

  <HTML>

  <HEAD>

  <TITLE> New Document </TITLE>

  <META NAME="Generator" CONTENT="EditPlus">

  <META NAME="Author" CONTENT="">

  <META NAME="Keywords" CONTENT="">

  <META NAME="Description" CONTENT="">

  <SCRIPT LANGUAGE="JavaScript">

  <!--

  function setfocus()

  {

  txt.focus();

  // 或者

  // document.getElementById("txt").focus();

  }

  //-->

  </SCRIPT>

  </HEAD>

  <BODY onload="setfocus()">

  <INPUT TYPE="text" NAME="txt">

  </BODY>

  </HTML>