I got following code :
$.ajax({
type: \"POST\",
async: false,
url: \"CheckIdExist\",
data: param,
success: function(result)
I had this problem also but solved it by changing the input type="submit" to type="button" and then just do your ajax request
$("input#submitbutton")
{
$.ajax(
{ type: "POST",
async: false,
url: "CheckIdExist",
data: param,
success: function(result) {
if (result == true){
//TODO: do you magic
}
else
$("form").submit();
},
error: function(error) {
alert(error);
return false;
}
});
});