Hello, the agent has to reside in forms_x.nsf. This code should work.

function Custom_Scene_PostLoad_Lite( s_SceneName, bInEditMode ){
    try {
        runAnAgent(sId);
    }
    catch(e)
    {
        // .....
    }
}

function runAnAgent(sId) {
    // Get the UNIDs of the selected documents
    var unids = API_GetSelectedDocs_Lite();

    // Create an XMLHttpRequest object
    if (window.XMLHttpRequest)
    {
        xhr = new XMLHttpRequest();     // Firefox, Safari, ...
    }
    else if (window.ActiveXObject)   // ActiveX version
    {
        xhr = new ActiveXObject("Microsoft.XMLHTTP");  // Internet Explorer
    }

    // Set the function to be called when the request finishes
    xhr.onreadystatechange  = function()
    {
        if(xhr.readyState  == 4)
        {
            if(xhr.status  == 200) {    // success
                // Set status message and/or pop up an alert
                AAA.EVI.sr (2, "", "Received:"  + xhr.responseText, true);

                //alert("OK");

                // Refresh the ToDo list   
                AAA.DSq.ELU(null, 'e-actions-todoview-list', 'ESV');

            }
            else {   // error
                AAA.EVI.sr (2, "", "Error code " + xhr.status, true);
                alert("Error running agent.  Error code: " + xhr.status);
            }
        }
    };

    // Set the POST params
    var sNonce = AAA.HHT ?  AAA.HHT() : AAA.getNonce();
    var params = "%25%25Nonce=" + sNonce + "&yourparameters=" + unids;

    // Send the request
    xhr.open("POST",  "./?EditDocument&Form=s_RunAgent&PresetFields=AgentName;YourAgentNameHere,CommonAgent;2",  true);
    xhr.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    xhr.send(params);
}

Hello Norbert, Many thanks for your answer, however I'm not able to trigger the agent, I put for example an alert just after the call:

function runAnAgent(sId) {　

alert ("OK");

but the alert is never displayed... my "scene" is memo opened from inbox (or other folder) in "read" mode... and after opening I must set a flag in backend...

thank you again,

M

Hello, I found the right way to call the agent in my "scene", I put this line before the call

if ((s_SceneName || '').split(':')[1] == 'EdT' && s_SceneName.indexOf('$new') == -1 )   {

var oElem = AAA.EcK.getElementById(s_SceneName.split(':')[0]);
var sContentId = oElem.getAttribute('com_ibm_dwa_ui_mailinfo_contentid');
var oContent = AAA.Fkb().getContent(sContentId);
var sDocUnid = oContent.sId;

     try {
         runAnAgent(sDocUnid); ...

Thank you again for your answer ,

M