<input type="text" name="T1" size="20" onclick="aaaa.innerText=selection.createRange().text">
<font id=aaaa>将选中值放在这里</font>
<input type="submit" value="提交" name="B1" onclick="alert('abcde');">
<font id=aaaa>将选中值放在这里</font>
<input type="submit" value="提交" name="B1" onclick="alert('abcde');">
<font id=aaaa>将选中值放在这里</font>
<input type="submit" value="提交" name="B1" onclick="alert('abcde');">
fdfdas
fdsa
fdsa
fda
fdsa</textarea><pre id=aaaa>将选中值放在这里</pre>
<textarea id=text cols=50 rows=10 onselect="replace()">daffffffffffffffff</textarea>
<script>
function replace(){
var r = document.selection.createRange();
r.text = "hhhh";
}
</script>