UI action GlideAjax issues

[benrollins]

I'm having an issue with a UI Action which should call a function to make an update to the current record.

I'm obviously missing something.  Appreciate another set of eyes to let me know where I'm going wrong:

UI Action is on an extended table of cmdb_ci, where I want to allow the user to reset two custom fields, containing Latitude and Longitude coordinates.  Users should not be able to specify coordinates directly, only clear, so there is a UI Policy in place making the fields read-only.

I have checked the "client" box on the UI action, and confirmed that "Isolate script" is not checked.
Below is the client script, which I know at least starts due to the InfoMessage:

function Onclick() {
	var ci = g_form.getUniqueValue();
	g_form.addInfoMessage("CI sysID is " + ci);
	var ga = new GlideAjax("MyCustomUtils");
	ga.addParam("sysparm_name",'ResetHome');
	ga.addParam("sysparm_ci", ci);
}

The script include and applicable function is below.  I never see the log message so it doesn't seem like calling this function ever succeeds.  I confirmed it is client callable.  Any suggestions are extremely welcome.

var MyCustomUtils = Class.create();
MyCustomUtils.prototype = Object.extendsObject(AbstractAjaxProcessor,{

    //---------------------------------------------------------------------------------------
    //---------------------------------------------------------------------------------------
    //Reset home coordinates

    ResetHome : function(ci) {
	gs.log("BR: ResetHome has started, variable passed is " + ci);
		
    // Lookup CI and reset HOME coordinates
    var gr = new GlideRecord("u_extended_cmdb_ci");
        gr.get('sys_id', ci);
	gr.u_home_lat = '';
	gr.u_home_long = '';
	gr.update();'
	gs.log("BR: ResetHome has finished");'
		
    },

    //---------------------------------------------------------------------------------------
    //---------------------------------------------------------------------------------------
    

    type: 'MyCustomUtils'
});

[MrMuhammad]

try this in client script

function Onclick() {
	var ci = g_form.getUniqueValue();
	g_form.addInfoMessage("CI sysID is " + ci);
	var ga = new GlideAjax("MyCustomUtils");
	ga.addParam("sysparm_name",'ResetHome');
	ga.addParam("sysparm_ci", ci);

        ga.getXML(myCallBack); //This is our callback function, which will process the response.

       function myCallBack(response) { 
         // if you want to return data from script include, you will receive it here
         // var data = response.responseXML.documentElement.getAttribute('answer'); ; 
       }
}

Script include

var MyCustomUtils = Class.create();
MyCustomUtils.prototype = Object.extendsObject(AbstractAjaxProcessor,{

    //---------------------------------------------------------------------------------------
    //---------------------------------------------------------------------------------------
    //Reset home coordinates

    ResetHome : function(ci) {
   var ciData = this.getParameter('sysparm_ci');
	gs.log("BR: ResetHome has started, variable passed is " + ci);
		
    // Lookup CI and reset HOME coordinates
    var gr = new GlideRecord("u_extended_cmdb_ci");
        if(gr.get(ciData)){
	 gr.u_home_lat = '';
	 gr.u_home_long = '';
	 gr.update();'
	 gs.log("BR: ResetHome has finished");'
        }
		
    },

    //---------------------------------------------------------------------------------------
    //---------------------------------------------------------------------------------------
    

    type: 'MyCustomUtils'
});