want to hide div pivot-container

I have requirement such that on click  of button excel  to be download with  table fields.
But i  dont want div data to get displayed below button.
 
<div id="pivot-container"></div>
 something like this  but not working
var x = document.getElementById("pivot-container");
x.style.display = "none";
 
var pivot = new Flexmonster({
container: "pivot-container",
componentFolder: "https://cdn.flexmonster.com/",
width: "100%",
height: 430,
report: {
dataSource: {
data: getData()
},
options: {
configuratorActive: false
}
}
});
 
when  i remove div element, it says  unable to create component. dom element with id pivot-container not found. I  dont want div to be displayed.  only button