ValidatorValidate = function(val, validationGroup, event) {
    val.isvalid = true;
    if ((typeof(val.enabled) == 'undefined' || val.enabled != false) && IsValidationGroupMatch(val, validationGroup)) {
        if (typeof(val.evaluationfunction) == 'function') {
            val.isvalid = val.evaluationfunction(val);
            if (!val.isvalid && Page_InvalidControlToBeFocused == null && typeof(val.focusOnError) == 'string' && val.focusOnError == 't') {
                ValidatorSetFocus(val, event);
            }
        }
    }
        
    ClearValidatorCallouts();
    SetValidatorCallouts(); 
     
    ValidatorUpdateDisplay(val);
}

SetValidatorCallouts = function() {
    var i;
    var pageValid = true;
    for (i = 0; i < Page_Validators.length; i++) {
        var inputControl = document.getElementById(Page_Validators[i].controltovalidate);
        if (!Page_Validators[i].isvalid) {
            if (inputControl != null) {
                if (pageValid)
                    inputControl.focus();
                WebForm_AppendToClassName(inputControl, 'invalid');
            }
            pageValid = false;
        }
    }
}
     
ClearValidatorCallouts = function() {
    var i;                    
    var invalidConrols = [];
    for (i = 0; i < Page_Validators.length; i++) {         
        var inputControl = document.getElementById(Page_Validators[i].controltovalidate);
        if (inputControl != null)
            WebForm_RemoveClassName(inputControl, 'invalid');
    }
}