javascript小玩意,只让输入数字的输入框
<body>
<script>
function jhshnumbertext()
{
if ( !(((window.event.keycode >= 48) && (window.event.keycode <= 57))
|| (window.event.keycode == 13) || (window.event.keycode == 46)
|| (window.event.keycode == 45)))
{
window.event.keycode = 0 ;
}
}
</s cript>
<form name=frm>
<input type=text name=test value="" onkeypress="jhshnumbertext()">
<input type=button name=submit value=submit>
</form>
</body>