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2.javascriptÖе÷ÓÃvbs¶Ô»°¿òʵÏÖConfirm,¿ÉÒÔÏÔʾYes,No,»¹Óи÷ÖÖͼ±ê£¬½öIEÏÂÓÐЧ£®
3.ÏÞÖÆÉÏ´«ÎļþÀàÐÍΪjpg.
4.ÏÞÖÆÀ뿪µ±Ç°Ò³Ã棬ÔÚÀ뿪ʱÌáʾ£®½öÏÞÖÆ´°¿Ú¹Ø±Õ»òͨ¹ýij¸öhref³¬¼¶Á´½ÓÀ뿪£®(Ò³ÃæË¢Ðº͵ØÖ·À¸¸Ä±äʱ²»Ìáʾ£©
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<html>
 <header>
   <title>Demo for Javascript</title>
  <script>
  
  //½ûÓ󬼶Á¬½Ó
  function EnabledLink(flag)
  {
   var btlink=document.getElementById('linkconfirm');
   if(btlink!=null)
   {
        btlink.disabled = !flag;
        btlink.onclick = function() { return flag; };
        btlink.style.cursor = flag ? "hand" : "text";
        btlink.style.textDecoration = flag ? "" : "none";
        btlink.title= flag ? "open other page" : "disabled";
    }
  }              
  
  //ÏÞÖÆÎļþÀàÐÍ
  function checktype(uploadfile)
  {
      var filepath = uploadfile.value
      //ÎļþÀàÐÍ´íÎó±ê¼Ç£¬·ÀÖ¹ÖØ¸´µ÷ÓÃ
      var hd = document.getElementById('hdfileerror');
      if (hd.value.length==0 && filepath.length > 0)
      {
          filepath = filepath.substring(filepath.lastIndexOf('.') + 1, filepath.length)
          if (filepath != 'jpg' && filepath != 'jpeg')
          {
           


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    var BLUE="blue" , RED = "red" , GREEN = "green";
    switch(sColor)
    {
        case BLUE:   alert("Blue"); break;
    &nb ......

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<script   language="javascript">  
  function   ShowTableRow(id)
 
  { 
  var _Row = document.getElementById(id)   <!-- »ñÈ¡IDΪTableRowID µÄ¶ÔÏó -->
  var _Img = document.getElementById("Img"+id)
 
&nb ......
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