function ValidatorEnable(val, enable) {  
    val.enabled = (enable != false);
}

function InvokeValidator(val) {  
    ValidatorValidate(val);
    ValidatorUpdateIsValid();
}

function ValidatorHookupControlID(controlID, val) {
    if (typeof(controlID) != "string") {
        return;
    }
    var ctrl = document.all[controlID];
    if (typeof(ctrl) != "undefined") {
        ValidatorHookupControl(ctrl, val);
    }
    else {
        val.isvalid = true;
        val.enabled = false;
    }
}
function ValidatorHookupControl(control, val) {
    if (typeof(control.tagName) == "undefined" && typeof(control.length) == "number") {
        var i;
        for (i = 0; i < control.length; i++) {
            var inner = control[i];
            if (typeof(inner.value) == "string") {
                ValidatorHookupControl(inner, val);
            } 
        }
        return;
    }
    else if (control.tagName != "INPUT" && control.tagName != "TEXTAREA" && control.tagName != "SELECT") {
        var i;
        for (i = 0; i < control.children.length; i++) {
            ValidatorHookupControl(control.children[i], val);
        }
        return;
    }
    else {
        if (typeof(control.Validators) == "undefined") {
            control.Validators = new Array;
            var ev;
            if (control.type == "radio") {
                ev = control.onclick;
            } else {
                ev = control.onchange;
            }
            if (typeof(ev) == "function" ) {            
                ev = ev.toString();
                ev = ev.substring(ev.indexOf("{") + 1, ev.lastIndexOf("}"));
            }
            else {
                ev = "";
            }
            var func = new Function("ValidatorOnChange(); " + ev);
            if (control.type == "radio") {
                control.onclick = func;
            } else {            
                control.onchange = func;
            }
        }
        control.Validators[control.Validators.length] = val;
    }    
}