HTML preRender: Preprocess templates and assign form input values

hi,This version of the class has more features than `Fillform` class and has been corrected disadvantages of it. It has separated programming in PHP and designing and done processing on designed template and then print them out. `Fillform` class is based on function preg, but this new class has been written based on domDocument and considered template or output HTML as a XML doc and check it and if necessary, will modify it. 

Features of class:

    ● Reading template or HTML doc from file address or as a string
    ● Adding tag or new content to content of head and body tag
    ● Setting title for page by titlepage function
    ● Changing or adding content to a tag
    ● Setting attribute for one or some tags.
    ● Finding one or some tags based on id, class, title and deleting tag or specified tags
    ● Working with forms
         □ Setting textbox value
         □ Selecting from dropdownlist
         □ Selecting an option through radiobuttons group
         □ Checking or unchecking a checkbox
         □ Setting value of hiddenfield
    ● Inserting or retrieving after submit the form
    ● Inserting a template into another template
    ● ...
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