<HTML>
<HEAD>
<SCRIPT>
function setCaretAtEnd (field) {
if (field.createTextRange) {
var r = field.createTextRange();
r.moveStart('character', field.value.length);
r.collapse();
r.select();
}
}
</SCRIPT>
</HEAD>
<BODY>
<FORM NAME="aForm">
<INPUT TYPE="text" NAME="userName" VALUE="测试文字" ONFOCUS="setCaretAtEnd(this)">
<INPUT TYPE="text" NAME="userAge" VALUE="测试文字" ONFOCUS="setCaretAtEnd(this)">
</FORM>
</BODY>
</HTML>
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