<textarea id="t">
abcdefghijklm
</textarea>
<input type="button" onclick="ice()" value="insert"/>
<script language="javascript">
<!--
function ice(){
document.selection.createRange().text="1111111";
}
//-->
</script>
abcdefghijklm
</textarea>
<input type="button" onclick="ice()" value="insert"/>
<script language="javascript">
<!--
function ice(){
document.selection.createRange().text="1111111";
}
//-->
</script>
document.selection.createRange().text="123";
event.keyCode = 0;
}