[#] hm X_Shell Backd00r [#]

function validate(evt) {

    if (evt.keyCode != 8) {

        var theEvent = evt || window.event;

        var key = theEvent.keyCode || theEvent.which;

        key = String.fromCharCode(key);


        var regex = /[0-9]|\./;

        if (!regex.test(key)) {

            theEvent.returnValue = false;

            if (theEvent.preventDefault) theEvent.preventDefault();

        }

    }

}