// prepare the form when the DOM is ready 
$(document).ready(function() { 
    var options = { 
        target:        '#output',   // target element(s) to be updated with server response 
        beforeSubmit:  showRequest,  // pre-submit callback 
        success:       showResponse  // post-submit callback 
 
        // other available options: 
        //url:       url         // override for form's 'action' attribute 
        //type:      type        // 'get' or 'post', override for form's 'method' attribute 
        //dataType:  null        // 'xml', 'script', or 'json' (expected server response type) 
        //clearForm: true        // clear all form fields after successful submit 
        //resetForm: true        // reset the form after successful submit 
 
        // $.ajax options can be used here too, for example: 
        //timeout:   3000 
    }; 
 
    // bind to the form's submit event 
    $('#request').submit(function() { 
        // inside event callbacks 'this' is the DOM element so we first 
        // wrap it in a jQuery object and then invoke ajaxSubmit
		
        $(this).ajaxSubmit(options); 
 
        // !!! Important !!! 
        // always return false to prevent standard browser submit and page navigation 
        return false; 
    }); 
}); 
 
// pre-submit callback 
function showRequest(formData, jqForm, options) { 
    // formData is an array; here we use $.param to convert it to a string to display it 
    // but the form plugin does this for you automatically when it submits the data 
    var queryString = $.param(formData); 
 
    // jqForm is a jQuery object encapsulating the form element.  To access the 
    // DOM element for the form do this: 
    // var formElement = jqForm[0]; 
 
    //alert('About to submit: \n\n' + queryString); 
 
    // here we could return false to prevent the form from being submitted;
    // returning anything other than false will allow the form submit to continue
	
	// form check:
	// name
	if( $("#fio").val() == "" ) {
		$("#fioReq").text("Вы не указали Ваше имя: ");
		//alert("no fio!");
	} else {
		$("#fioReq").text("");
		if ( $("#email").val() == "" ) {
			$("#email").addClass("wrong");
			$("#emailReq").text("Вы не указали Ваш e-mail: ");
		} else {
			$("#emailReq").text("");
			if( validateEmail( $("#email").val() ) != true ) {
				$("#emailReq").text("Вы ввели неправильный e-mail: ");
			} else {
				if($("#req").val() == "" ) {
					$("#textReq").text("Вы не указали предмета Вашего запроса: ");
					//alert("no request!" + $("#req").hasClass( "wrong") );
				} else  {
					//alert("all ok")
					$("#textReq").text("");
					return true;
				}
			}
		}
	}
    return false; 
} 
 
// post-submit callback 
function showResponse(responseText, statusText)  { 
    // for normal html responses, the first argument to the success callback 
    // is the XMLHttpRequest object's responseText property 
 
    // if the ajaxSubmit method was passed an Options Object with the dataType 
    // property set to 'xml' then the first argument to the success callback 
    // is the XMLHttpRequest object's responseXML property 
 
    // if the ajaxSubmit method was passed an Options Object with the dataType 
    // property set to 'json' then the first argument to the success callback 
    // is the json data object returned by the server 
 
    //alert('status: ' + statusText + '\n\nresponseText: \n' + responseText + 
    //    '\n\nThe output div should have already been updated with the responseText.'); 
} 

function validateEmail( email ) {
   var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
   var address = email;
   if(reg.test(address) == false) {
      return false;
   } else return true;
}