javascript location search

Provides the URL-encoded portion of a URL that begins with the ? symbol. A document that is served up as the result of the search also may have the search portion available as part of the window.location property. You can modify this property by script. Doing so sends the URL and search criteria to the server. You must know the format of data (usually name/value pairs) expected by the server to perform this properly. You can also pass string data between separate pages by appending a search string to the next page's URL. While the search string appendage does not affect retrieval of the page, the string arrives with the new page in the new page's location object. A script in the new page can read and dissect the location.search property to place the passed values in variables that scripts in the page may use for their processing.