function CleanSTxt (str) {
    return str.replace(/\**/g,'').replace(/\%*/g,'').replace(/^\s*|\s*$/g,'');
}

function SSubmit(SForm, STxtDefault) {
    with (SForm.txtNtt) {
        value = CleanSTxt(value);
	    if (value == STxtDefault || value == '') {
		    return false;
	    }
    }
    return true;
}

function STxtFocus (STxtBox, STxtDefault) {
    with (STxtBox) {
	    if (CleanSTxt(value) == STxtDefault) {
		    value = '';
	    }
    }
}

function STxtBlur (STxtBox, STxtDefault){
    with (STxtBox) {
	    if (CleanSTxt(value) == '') {
		    value = STxtDefault;
	    }
    }
}

function ClrS (SForm, STxtDefault) {
    SForm.txtNtt.value = STxtDefault;
}