Automatic tag variables in IE

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  • acw
    #1

    Automatic tag variables in IE

    I am trying to understand how IE handles automatic tag variables.

    I know that IE will create a global variable each time it finds a tag
    with its name or id attribute set. If you have more than one tag with
    the same name or id (yes this is bad) on a page then that global
    variable goes from being a tag reference to being a collection of
    references.

    In most cases if you remove the duplicate tag the global var becomes a
    tag reference again. Other times it remains a collection but with only
    one element.

    Getting completely away from using the automatic variables is not an
    option. So, I am trying to understand how the variables are handled by
    IE. Does anyone know what determines whether the global variable is
    reverted to a tag reference or left as a collection when the duplicate
    tags are removed from the page?


    =============== =============== =============== ===============

    For example, if we start with
    ..
    <div id="container1" ></div>
    <div id="container2" ></div>
    ..

    then do ...

    ..
    container1.inne rHTML = "<span id='sometext'>s ome text</span>"
    ....
    container2.inne rHTML = "<span id='sometext'>s ome more text</span>"
    ..



    The global var sometext is a collection with two elements.


    If we do the following


    container2.inne rHTML = ""


    The global var sometext is usually pointing to the first span. Other
    times is a collection and sometext[0] points to the first span.




    TIA!
    Tags: None
    • Jonathan N. Little
      #2
      Re: Automatic tag variables in IE

      acw wrote:
      I am trying to understand how IE handles automatic tag variables.
      >
      I know that IE will create a global variable each time it finds a tag
      with its name or id attribute set. If you have more than one tag with
      the same name or id (yes this is bad) on a page then that global
      variable goes from being a tag reference to being a collection of
      references.
      >
      In most cases if you remove the duplicate tag the global var becomes a
      tag reference again. Other times it remains a collection but with only
      one element.
      >
      Getting completely away from using the automatic variables is not an
      option. So, I am trying to understand how the variables are handled by
      IE. Does anyone know what determines whether the global variable is
      reverted to a tag reference or left as a collection when the duplicate
      tags are removed from the page?
      >
      >
      =============== =============== =============== ===============
      >
      For example, if we start with
      .
      <div id="container1" ></div>
      <div id="container2" ></div>
      .
      >
      then do ...
      >
      .
      container1.inne rHTML = "<span id='sometext'>s ome text</span>"
      ...
      container2.inne rHTML = "<span id='sometext'>s ome more text</span>"
      .
      >
      >
      >
      The global var sometext is a collection with two elements.
      >
      >
      If we do the following
      >
      >
      container2.inne rHTML = ""
      >
      >
      The global var sometext is usually pointing to the first span. Other
      times is a collection and sometext[0] points to the first span.
      >
      The flaw is in a document all IDs must be unique, and IDs cannot be
      arrays...


      --
      Take care,

      Jonathan
      -------------------
      LITTLE WORKS STUDIO
      Little Works Studio Site Maintainance
      http://www.LittleWorksStudio.com

        Comment

        • acw
          #3
          Re: Automatic tag variables in IE

          Jonathan,

          Thanks for the response.

          Yes ids do need to be unique. In this case that are not and, because
          of the nature of the project, I am not in a position to make them
          unique.


          I am really just wanting to understand how IE handles the automatic
          vars.


          TIA




          On Jul 2, 1:25 pm, "Jonathan N. Little" <lws4...@centra l.netwrote:
          acw wrote:
          I am trying to understand how IE handles automatic tag variables.
          >
          I know that IE will create a global variable each time it finds a tag
          with its name or id attribute set. If you have more than one tag with
          the same name or id (yes this is bad) on a page then that global
          variable goes from being a tag reference to being a collection of
          references.
          >
          In most cases if you remove the duplicate tag the global var becomes a
          tag reference again. Other times it remains a collection but with only
          one element.
          >
          Getting completely away from using the automatic variables is not an
          option. So, I am trying to understand how the variables are handled by
          IE. Does anyone know what determines whether the global variable is
          reverted to a tag reference or left as a collection when the duplicate
          tags are removed from the page?
          >
          =============== =============== =============== ===============
          >
          For example, if we start with
          .
          <div id="container1" ></div>
          <div id="container2" ></div>
          .
          >
          then do ...
          >
          .
          container1.inne rHTML = "<span id='sometext'>s ome text</span>"
          ...
          container2.inne rHTML = "<span id='sometext'>s ome more text</span>"
          .
          >
          The global var sometext is a collection with two elements.
          >
          If we do the following
          >
          container2.inne rHTML = ""
          >
          The global var sometext is usually pointing to the first span. Other
          times is a collection and sometext[0] points to the first span.
          >
          The flaw is in a document all IDs must be unique, and IDs cannot be
          arrays...
          >
          --
          Take care,
          >
          Jonathan
          -------------------
          LITTLE WORKS STUDIOhttp://www.LittleWorks Studio.com- Hide quoted text -
          >
          - Show quoted text -

            Comment

            • Bergamot
              #4
              Re: Automatic tag variables in IE


              acw wrote:
              I am trying to understand how IE handles automatic tag variables.
              I suggest asking Microsoft how their browser works because I doubt very
              many people here know or care. The IE groups are over at
              microsoft.publi c.<something about IE>

              --
              Berg

                Comment

                • Jonathan N. Little
                  #5
                  Re: Automatic tag variables in IE

                  acw wrote:
                  Jonathan,
                  >
                  Thanks for the response.
                  >
                  Yes ids do need to be unique. In this case that are not and, because
                  of the nature of the project, I am not in a position to make them
                  unique.
                  Well that make the document invalid, then who knows? Computers like
                  "Yes|No", when you throw "Maybe" at them then it is up how well of an
                  exception handler you got...



                  --
                  Take care,

                  Jonathan
                  -------------------
                  LITTLE WORKS STUDIO
                  Little Works Studio Site Maintainance
                  http://www.LittleWorksStudio.com

                    Comment

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