function update()

    {

        var FCK = window.opener.FCKeditorAPI.GetInstance('ctl00_cph_FCKeditor1') ; var str = FCK.GetXHTML( true ); if(document.getElementById('Radio1').checked) {

            str=str.replace(/{u_mergefield}/g,"{u_fname}")

        } else if(document.getElementById('Radio2').checked) {

            str=str.replace(/{u_mergefield}/g,"{u_lname}")

        } else if(document.getElementById('Radio3').checked) {

            str=str.replace(/{u_mergefield}/g,"{u_street}")

        } else if(document.getElementById('Radio4').checked) {

            str=str.replace(/{u_mergefield}/g,"{u_city}")

        } else if(document.getElementById('Radio5').checked) {

            str=str.replace(/{u_mergefield}/g,"{u_state}")

        } else if(document.getElementById('Radio6').checked) {

            str=str.replace(/{u_mergefield}/g,"{u_zip}")

        } else {

            str=str.replace(/{u_mergefield}/g,"");

        } FCK.SetHTML(str); delete str; delete FCK; window.close(); return(false);

    }