Base Ajax Call

baseAjaxCall.js

//My answer Stackoverflow
// http://stackoverflow.com/a/30301335/2545964 

function baseAjaxCall(option, sCb) {    
    var ajaxOptions = {
        method: option.method || "GET",
        url: option.url,
        dataType: option.dataType || "xml",
        success : function(data) {
            var root = $($.parseXML(data)).find("Response");
            if (root.children("Type").text() == "Error") {
              toastr.error(root.children("Content").text(), "Error " + root.children("ReturnCode").text());
              return;
            }
            else {
                sCb(root);
            }
        },
        error : function(qXHR, textStatus, errorThrown){
            toastr.error(errorThrown, "Error " + qXHR.status);
        }
    };
    //you can check for optional settings
    if(option.contentType  !== undefined){
        ajaxOptions.contentType = option.contentType;
    }

    $.ajax(ajaxOptions);
}

how-to-use.js

baseAjaxCall({ url: "someurl.html" }, function(root){
 // no need to chek for errors here!
});