Dhtmlx.message creates several message pop-ups

Suite and Optimus Suite 5
#1 
if(id=="updatecategory"){
update_form.send(url, method, function(){
	grid_1.clearAndLoad(url);
	dhtmlx.message("Product group successfully updated.");
});
}

I select a product to update and load the details to a form. Once I clicked update, a dhtmlx.message is shown. My problem is:

1st update: single dhtmlx.message is shown
ex. Product group successfully updated.

2nd update: dhtmlx.message doubles
ex.

Product group successfully updated.
Product group successfully updated.

3rd update: thrice and so on.

I want the dhtmlx.message to show only once when i click the update button.

#2

May be you can provide a direct link to the project or send us completed demo to inspect it?
docs.dhtmlx.com/doku.php?id=othe … leted_demo