function ValidatorHookupControl(control, val) 
{
    if (typeof(control.tagName) != "string") {
        return;  
    }
    if (control.tagName != "INPUT" && control.tagName != "TEXTAREA" && control.tagName != "SELECT") {
        var i;
        for (i = 0; i < control.childNodes.length; i++) {
            ValidatorHookupControl(control.childNodes[i], val);
        }
        return;
    }
    else {
        if (typeof(control.Validators) == "undefined") {
            control.Validators = new Array;
            var eventType;
            if (control.type == "radio") {
                eventType = "onclick";
            } else {
                eventType = "onchange";
                if (typeof(val.focusOnError) == "string" && val.focusOnError == "t") {
                    ValidatorHookupEvent(control, "onblur", "ValidatedControlOnBlur(event); ");
                }
            }
            ValidatorHookupEvent(control, eventType, "ValidatorOnChange(event); ");
            if (control.type == "text" ||
                control.type == "password" ||
                control.type == "file") {
                ValidatorHookupEvent(control, "onkeypress", 
                    "if (!ValidatedTextBoxOnKeyPress(event)) { return false; } ");
            }
        }
        control.Validators[control.Validators.length] = val;
    }
}

function Page_ClientValidate(validationGroup) 
{
    Page_InvalidControlToBeFocused = null;
    if (typeof(Page_Validators) == "undefined") { return true; }
    var i;
    for (i = 0; i < Page_Validators.length; i++) { ValidatorValidate(Page_Validators[i], validationGroup, null); }
    ValidatorUpdateIsValid();
    ValidationSummaryOnSubmit(validationGroup);
    Page_BlockSubmit = !Page_IsValid;

    if(!Page_IsValid)
    __defaultFired = false;

    return Page_IsValid;
}