// ---- checking form field data()
    //
    function checkData(){

        var objForm = document.forms[ 'frmAction' ];
        var aPosMsg = new Array();
        var aErrMessages = new Array();

        if( "" != objForm.txtAccountName.value ){
            var element = objForm.txtAccountName;
            var re = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
            if( !re.test( element.value ) ){
                aErrMessages.push( "txtAccountName_" + "Your email contains invalid characters!" );
            } // if( !re.test( element.value ) )
        } else {
            aErrMessages.push( "txtAccountName_" + "Please insert your email address!" );
        } // if( "" != objForm.txtAccountName.value )

        if( "" != objForm.txtCaptchaCode.value ){
            var element = objForm.txtCaptchaCode;
            var re = /[\w\d]/;
            if( !re.test( element.value ) ){
                aErrMessages.push( "txtCaptchaCode_" + "The CAPTCHA code contains invalid characters!" );
            } else {
                aPosMsg.push( "txtCaptchaCode" );
            } // if( !re.test( element.value ) )
        } else {
            aErrMessages.push( "txtCaptchaCode_" + "Please verify the CAPTCHA code!" );
        } // if( "" != objForm.txtCaptchaCode.value )

        if( aErrMessages.length > 0 ){
            for( var idx = 0; idx < aPosMsg.length; idx++ ){
                if( null != document.getElementById( aPosMsg[ idx ] ) ){
                    document.getElementById( aPosMsg[ idx ] ).style.border = "1px solid #ccc";
                } // if( null != document.getElementById( aPosMsg[ idx ] ) )
                document.getElementById( aPosMsg[ idx ] + "Msg" ).innerHTML = "";
            } // for( var idx = 0; idx < aPosMsg.length; idx++ )
            for( var idx = 0; idx < aErrMessages.length; idx++ ){
                aErrorMsg = aErrMessages[ idx ].split( "_" );
                if( null != document.getElementById( aErrorMsg[ 0 ] ) ){
                    document.getElementById( aErrorMsg[ 0 ] ).style.border = "1px solid #a70000";
                } // if( null != document.getElementById( aErrorMsg[ idx ] ) )
                document.getElementById( aErrorMsg[ 0 ] + "Msg" ).innerHTML = aErrorMsg[ 1 ];
            } // for( var idx = 0; idx < aErrMessages.length; idx++ )
            return;
        } // if( aErrMessages.length > 0 )

        objForm.submit();

    } // 'function checkData()'.