//...

//create an array of all unique userids in the page
if(this.id != undefined)
{
    var username = this.id;
    //add this object (div by default) that met the query parameters
    //to a list to be altered later
    if( GitHubRepos.displayObjects[username] == undefined)
    {
       GitHubRepos.displayObjects[username] = new Array();
    }
    GitHubRepos.displayObjects[username][i] = this;
}

//...