JS把光标聚焦到输入框里的文字的最后面

<script language=javascript>
function behindWord()
{
var e = event.srcElement;
var r = e.createTextRange();
r.moveStart("character",e.value.length);
r.collapse(true);
r.select();
}

</script>

<input type= "text " onfocus= "behindWord() " value= "tttt "/>