/// <reference path="jquery/jquery-1.6.2-vsdoc.js" />

function IntegerOnly(ctrl) {
    var newValue = ctrl.value;
    newValue=newValue.replace(/\D/g, '');
    if (newValue.length > 5) {
        var afterDash = newValue.substring(5);
        newValue = newValue.substring(0, 5) + '-' + afterDash;
    }
    ctrl.value = newValue;  
}