UpdateFieldWithJavaScript.js

(function() {

    /* Replace id with the ID of the element that you intend to update */
    var id = "PTCS_EVMAP_CFGS_PTCS_SERVICEID$0";
    var el = document.getElementById(id);

    /* The following is the text to enter into the field */
    el.value = "JSM_DD_HIDE_PRNT";

    /* Trigger any PeopleSoft-specific change handling */
    el.onchange();

    /* Trigger Ajax submission */
    /* %FormName is a PeopleSoft Meta-HTML variable */
    submitAction_%FormName(document.%FormName, id);
}());