JavaScript redirecting away from course

I have a separate .js function running the code below, all the code works and the results are tracked, however the browser then redirects to the URL used in the post code.  I want the code to execute in the background and the learners stays on the screen.

Any idea's of how to stop the course from redirecting, is it possible to add code so that as soon as the code is finished, stop?

function clickme() {
 
var player = GetPlayer();

var email = player.GetVar("email");        
var firstname = player.GetVar("firstname");
var lastname = player.GetVar("lastname");
var country = player.GetVar("country");
var courseid = player.GetVar("courseid");
var division = player.GetVar("division");
   
     
    var sHTML = "";
    sHTML += "<form id='formScore' method='post' action=' http://URL/sendreport.aspx?USER_EMAIL=" + email + "&FIRST_NAME=" + firstname + "&LAST_NAME=" + lastname + "&COUNTRY=" + country + "&COURSE_ID=" + courseid + "&DIVISION=" + division + "'>";
    sHTML += "<input type='hidden' id='USER_EMAIL' name='USER_EMAIL' value= " + email + ">";
    sHTML += "<input type='hidden' id='FIRST_NAME' name='FIRST_NAME' value= " + firstname + ">";
    sHTML += "<input type='hidden' id='LAST_NAME' name='LAST_NAME' value= " + lastname + ">";
    sHTML += "<input type='hidden' id='COUNTRY' name='COUNTRY' value= " + country + ">";
    sHTML += "<input type='hidden' id='COURSE_ID' name='COURSE_ID' value= " + courseid + ">";
    sHTML += "<input type='hidden' id='DIVISION' name='DIVISION' value= " + division + ">";
    sHTML += "<br><input type='submit'><br>";
    sHTML += "</form>";
    document.getElementById("divEmail").innerHTML = sHTML;
    document.getElementById("formScore").submit();   
    alert('sent');
   }

Thanks

Stephen