显示行号的文本输入框

<HTML> <HEAD> <TITLE>DirMap</TITLE> <meta http-equiv='Content-Type' content='text/html; charset=gb2312'> </HEAD> <style> * {  font-size: 12px } body {  margin: 10px; padding: 0px } A {  COLOR: black; TEXT-DECORATION: none; } A:hover {  COLOR: black; TEXT-DECORATION: none; } A:link {  TEXT-DECORATION: none } A:visited {  TEXT-DECORATION: none } table.list{  cursor: default;  border:1px solid #cccccc  background-color: #cccccc;  border-collapse: collapse;  border-Color: #cccccc; } </style> <script> function check_form() {  var the_form = document.forms[0];  if(!/^[\w\.]+$/.test(the_form.name.value)) {   alert('Bad File Name !');   the_form.name.focus();   return false;  }  if(!/^[0-7]{3}$/.test(the_form.attrib.value)) {   alert('Bad File Attrib !');   the_form.attrib.focus();   return false;  }  if(the_form.del.checked) {   return confirm('Are you sure to delete the file ?');  }  return true; } function show_ln(){  var txt_ln  = document.getElementById('txt_ln');  var txt_main  = document.getElementById('txt_main');  txt_ln.scrollTop = txt_main.scrollTop;  while(txt_ln.scrollTop != txt_main.scrollTop) {   txt_ln.value += (i++) + '\n';   txt_ln.scrollTop = txt_main.scrollTop;  }  return; } function editTab(){  var code, sel, tmp, r  var tabs=''  event.returnValue = false  sel =event.srcElement.document.selection.createRange()  r = event.srcElement.createTextRange()  switch (event.keyCode){   case (8) :    if (!(sel.getClientRects().length > 1)){     event.returnValue = true     return    }    code = sel.text    tmp = sel.duplicate()    tmp.moveToPoint(r.getBoundingClientRect().left, sel.getClientRects()[0].top)    sel.setEndPoint('startToStart', tmp)    sel.text = sel.text.replace(/^\t/gm, '')    code = code.replace(/^\t/gm, '').replace(/\r\n/g, '\r')    r.findText(code)    r.select()    break   case (9) :    if (sel.getClientRects().length > 1){     code = sel.text     tmp = sel.duplicate()     tmp.moveToPoint(r.getBoundingClientRect().left, sel.getClientRects()[0].top)     sel.setEndPoint('startToStart', tmp)     sel.text = '\t'+sel.text.replace(/\r\n/g, '\r\t')     code = code.replace(/\r\n/g, '\r\t')     r.findText(code)     r.select()    }else{     sel.text = '\t'     sel.select()    }    break   case (13) :    tmp = sel.duplicate()    tmp.moveToPoint(r.getBoundingClientRect().left, sel.getClientRects()[0].top)    tmp.setEndPoint('endToEnd', sel)    for (var i=0; tmp.text.match(/^[\t]+/g) && i<tmp.text.match(/^[\t]+/g)[0].length; i++) tabs += '\t'    sel.text = '\r\n'+tabs    sel.select()    break   default  :    event.returnValue = true    break  } } </script> <BODY> <table width='700' class='list' border='1' bgcolor='#eeeeee' bordercolorlight='#000000' bordercolordark='#FFFFFF' cellpadding='0' cellspacing='0'>   <tr bgcolor='#cccccc'>      <td colspan='2' height='20'>        <div align='center'><b>File Information</b> </div>     </td>   </tr>   <tr>      <td colspan='2'>        <form name='edit' method='post' action='fso_edit.php' onsubmit='return check_form()'>         <table width='90%' border='0' align='center' >           <tr>              <td>Name ：</td>             <td><input type='text' name='name' value='upload_manager.class.php'></td>           </tr>           <tr>              <td valign='top'>Time ：</td>             <td>2003-10-02 00:55:59</td>           </tr>           <tr>              <td>Attrib ：</td>             <td><input type='text' name='attrib' value='666'> (rw-rw-rw-)</td>           </tr>           <tr>              <td>MoveTo ：</td>             <td>               <select name='move'>                 <option value=''>NoMove</option>                 <option value='../fso/../'>Parent Direction</option>               </select>             </td>           </tr>            <tr>               <td>Size ：</td>              <td>6.2 KB</td>            </tr>            <tr>               <td valign='top'>Content ：</td>              <td>                <textarea id='txt_ln' name='content' rows='10' cols='4' style='overflow:hidden;height:200px;border-right:0px;text-align:right' readonly></textarea><textarea id='txt_main' name='content' rows='10' cols='70 'onkeydown='editTab()' onChange="document.forms[0].modi.value='ture'" onscroll='show_ln()' wrap='off' style='overflow:auto;height:200px;padding-left:5px;border-left:0px'> /******************************************** *                                           * * Name    : Upload Manager                  * * Author  : Windy_sk                        * * Time    : 2003-05-10                      * * Email   : flyhorses@sina.com              * * HomePage: None (Maybe Soon)               * * Notice  : U Can Use &amp; Modify it freely,   * *           BUT PLEASE HOLD THIS ITEM.      * *                                           * ********************************************/ class Upload_Manager {  var $upload_path = &quot;&quot;;  var $upload_counter = 0;  var $upload_result = array();  var $upload_rename = false; function Upload_Manager($upload_path = 'upload/', $upload_rename = false, $relative = false) {     } } </textarea>                <script>for(var i=1; i<=20; i++) document.getElementById('txt_ln').value += i + '\n';</script>                <input type='hidden' name='modi' value=''>              </td>            </tr>              <tr>              <td colspan='2'>                <div align='center'>                 <input type='hidden' name='name_org' value='upload_manager.class.php'>                 <input type='hidden' name='path' value='../fso'>                 <input type='Submit' value=' 确 定 ' name='Submit'>&nbsp;&nbsp;                 <input type='reset' value=' 重 置 ' name='reset'>&nbsp;&nbsp;                 <input type='checkbox' value='true' name='del'> 删 除               </div>             </td>           </tr>         </table>       </form>     </td>   </tr> </table> </BODY> </HTML>

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显示行号的文本输入框

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