Remove JS class dynamically javascript

function removejscssfile(filename, filetype){
    var targetelement=(filetype=="js")? "script" : (filetype=="css")? "link" : "none";
//determine element type to create nodelist from
    var targetattr=(filetype=="js")? "src" : (filetype=="css")? "href" : "none";
//determine corresponding attribute to test for
    var allsuspects=document.getElementsByTagName(targetelement);
    for (var i=allsuspects.length; i>=0; i--){
//search backwards within nodelist for matching elements to remove
    if (allsuspects[i] && allsuspects[i].getAttribute(targetattr)!=null && allsuspects[i].getAttribute(targetattr).indexOf(filename)!=-1)
        allsuspects[i].parentNode.removeChild(allsuspects[i]) //remove element by calling parentNode.removeChild()
    }


 removejscssfile("braintree.js", "js");

Javascript Canceling the Save operation crm 2011

executionObj.getEventArgs().preventDefault();

Update entity record status

 SetStateRequest setStateRequest = new SetStateRequest()
                {
                    EntityMoniker = new EntityReference
                    {
                        Id = new Guid(_orderid),
                        LogicalName = "salesorder",
                    },
                    State = new OptionSetValue((int)SalesOrderState.Submitted),
                    Status = new OptionSetValue(3)
                };
                service.Execute(setStateRequest);

Retrieve CRM Order Entity record from Asp.net C#

 public Entity GetOrderDetails(Guid OrderID)
        {
            ClientCredentials Credentials = new ClientCredentials();
            Credentials.UserName.UserName = "UserName";
            Credentials.UserName.Password = "Password";
            //Credentials.Windows.ClientCredential = CredentialCache.DefaultNetworkCredentials;
            Uri organizationURI = new Uri("Organization uri");
            OrganizationServiceProxy serviceproxy = new OrganizationServiceProxy(organizationURI,                null, Credentials, null);
             orgservice = (IOrganizationService)serviceproxy;
                Entity OrdersEntity = null;        
                ConditionExpression condition = new ConditionExpression();
                condition.AttributeName = "salesorderid";
                condition.Operator = ConditionOperator.Equal;
                condition.Values.Add(OrderID);
                ColumnSet columns = new ColumnSet(true);
                QueryExpression expression = new QueryExpression();
                expression.EntityName = "salesorder";
                expression.ColumnSet = columns;
                expression.Criteria.AddCondition(condition);
                EntityCollection opportunityEntityColl = orgservice.RetrieveMultiple(expression);
                if (opportunityEntityColl.Entities.Count > 0)
                {
                    OrdersEntity = opportunityEntityColl.Entities[0];
                }
                return OrdersEntity;

         

        }