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Javascript query

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  • 28-04-2005 12:16pm
    #1
    Ph3n0m
    Closed Accounts Posts: 4,655 ✭✭✭


    Just wondering what the following piece of code means

    
var contPage = (location.search.substring(1))? location.search.substring(1) : 'sample.php';


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    #2
    Caixa
    Closed Accounts Posts: 36 ✭Caixa


    As far as I can see, it sets contPage to the first element that comes after the ? in the url (example.html?value) and if there's no value, it defaults to sample.php. It could then be used in, say, a frame or iFrame to load in a page.

    Try doing a google for javascript query strings for a better explanation.


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    #3
    hostyle
    Registered Users Posts: 1,268 ✭✭✭hostyle


    Caixa wrote:
    As far as I can see, it sets contPage to the first element that comes after the ? in the url (example.html?value) and if there's no value, it defaults to sample.php. It could then be used in, say, a frame or iFrame to load in a page.

    Not quite. Close though :) it sets contPage to the QUERY_STRING (all of it - not just the first value) in the URI if it exists. Otherwise it sets contPage to sample.php.

    I can explain it in detail if you want ...


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    #4
    Ph3n0m
    Closed Accounts Posts: 4,655 ✭✭✭Ph3n0m


    following on from that, how do you discover the location of an item, in relation to the parent


    eg, I have an iframe called test, it is located on a page called example.php, and that is located in a frame called main, which is a frame of 100% to mask the URL


    What is the easiest way to determine its location like "top.frame.etc"


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    #5
    hostyle
    Registered Users Posts: 1,268 ✭✭✭hostyle


    Ph3n0m wrote:
    following on from that, how do you discover the location of an item, in relation to the parent


    eg, I have an iframe called test, it is located on a page called example.php, and that is located in a frame called main, which is a frame of 100% to mask the URL


    What is the easiest way to determine its location like "top.frame.etc"

    Easiest way? Dunno. Sounds like it would be:
    top.frames['main'].document.getElementById('test')

    provided you give your IFRAME an id matching its name ...


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