用 onerror 获取错误信息(3)_Dreamweaver教程

<tr>
<td align='center'><br />
<textarea id='txt_ln' name='content' rows='10' style='width:40px;overflow:hidden;height:200px;border-right:0px;text-align:right;line-height:14px' onselectstart='this.nextSibling.focus();return false' readonly></textarea><textarea id='txt_main' name='content' rows='10' cols='80' onkeydown='editTab()' onkeyup='show_ln()' onscroll='show_ln()' wrap='off' style='overflow:auto;height:200px;padding-left:5px;border-left:0px;line-height:14px'></textarea>
<script>for(var i=1; i<=20; i ) document.getElementById('txt_ln').value = i '\n';</script>
</td>
</tr>
<tr>
<td align='center'><br />
<input type='button' value=' 运 行 ' onclick='runcode()' accesskey='r'>&nbsp;&nbsp;
<input type='button' value=' 保 存 ' onclick='savecode()' accesskey='s'>&nbsp;&nbsp;
<input type='button' value=' 跳 转 ' onclick="goto(prompt('Please input the line number', '1'))" accesskey='g'>&nbsp;&nbsp;
</td>
</tr>
</table>
</td>
</tr>
</table>
</BODY>
</HTML>