单击按钮的值返回到文本框中
[code=HTML][/code]<head>
<title>无标题文档</title>
</head>
<body>
<script language="javascript">
function Insert(str) {
var obj = document.getElementById('content');
if(document.selection) {
obj.focus();
var sel=document.selection.createRange();
document.selection.empty();
sel.text = str;
} else {
var prefix, main, suffix;
prefix = obj.value.substring(0, obj.selectionStart);
main = obj.value.substring(obj.selectionStart, obj.selectionEnd);
suffix = obj.value.substring(obj.selectionEnd);
obj.value = prefix + str + suffix;
}
obj.focus();
}
</script>
<table width="630" height="55" border="0" cellpadding="0" cellspacing="0">
<tr><td>
<label>
<textarea id="content" name="textarea" style="width:500px; height:120px;"></textarea>
</label>
</td></tr>
<tr>
<td width="567" align="left" >
<input type="button" style="cursor:hand" onclick="javascript:Insert('急')" value="急 " />
<input type="button" style="cursor:hand" onclick="javascript:Insert('发')" value="发 " />
<input type="button" style="cursor:hand" onclick="javascript:Insert('求')" value="求 " />
<input type="button" style="cursor:hand" onclick="javascript:Insert('回')" value="回 " />
<input type="button" style="cursor:hand" onclick="javascript:Insert('货')" value="货 " />
<input type="button" style="cursor:hand" onclick="javascript:Insert('至')" value="至 " />
<input type="button" style="cursor:hand" onclick="javascript:Insert('车')" value="车 " />
<input type="button" style="cursor:hand" onclick="javascript:Insert('到')" value="到 " />
<input type="button" style="cursor:hand" onclick="javascript:Insert('要')" value="要 " />
<input type="button" style="cursor:hand" onclick="javascript:Insert('在')" value="在 " />
<input type="button" style="cursor:hand" onclick="javascript:Insert('剩')" value="剩 " />
<input type="button" style="cursor:hand" onclick="javascript:Insert('空')" value="空 " />
<input type="button" style="cursor:hand" onclick="javascript:Insert('装')" value="装 " />
<input type="button" style="cursor:hand" onclick="javascript:Insert('占')" value="占 " />
<input type="button" style="cursor:hand" onclick="javascript:Insert('或')" value="或 " />
<input type="button" style="cursor:hand" onclick="javascript:Insert('节')" value="节 " />
<input type="button" style="cursor:hand" onclick="javascript:Insert('大')" value="大 " />
<input type="button" style="cursor:hand" onclick="javascript:Insert('小')" value="小 " />
<input type="button" style="cursor:hand" onclick="javascript:Insert('卸')" value="卸 " />
</td>
</tr>
</table>
</body>
</html>
此代码有点问题，单击按钮，按钮的值就在文本域中显示，当你继续单击空白处后，再去单击按钮文本域中显示的文字不能随上次位置继续显示，而是在文本域的开始地方显示，求解！！！
[解决办法]
纠正一下，不只IE，chrome、opera、sarafi也需要自己把光标移到最后。
