jQuery.createUploadForm is not a function-Collection of common programming errors

I am using ajaxupload for uploading and using jQuery 1.7.2. I got an error like this

TypeError: jQuery.createUploadForm is not a function
[Break On This Error]   

... jQuery.createUploadForm(id, s.fileElementId, (typeof(s.data)=='undefined'?false... 

my code is

function ajaxFileUpload()
    {
        jQuery.ajaxFileUpload
        (
            {
                url:'',
                secureuri:false,
                fileElementId:'fileToUpload',
                dataType: 'json',
                success: function (data, status)
                {
                    if(typeof(data.error) != 'undefined')
                    {
                        if(data.error != '')
                        {
                            alert(data.error);
                        }else
                        {
                            alert(data.msg);
                        }
                    }
                }
            }
        )

        return false;

    }   

and the html is

Please help me to solve this. Thanks in advance.