OBJECT: Location

The Location object is part of a Window object and is accessed
through the window.location property. It contains the complete
URL of a given Window object, or, if none is specified, of the
current Window object. All of its properties are strings representing
different portions of the URL, which generally takes the following form:
 
<protocol>//<host>[:<port>]/<pathname>[<hash>][<search>]
 
You can create a Location object by simply assigning a URL
to the location property of an object:
 
Code:
window.location = "file:///C:/Projects"
 
PROPERTIES
 
hash Property
The hash property is a string beginning with a hash (#), that
specifies an anchor name in an HTTP URL.
 
Syntax: location.hash
 
host Property
The host property is a string comprising of the hostname
and port strings.
 
Syntax: location.host
 
hostname Property
The hostname property specifies the server name, subdomain and
domain name (or IP address) of a URL.
 
Syntax: location.hostname
 
href Property
The href property is a string specifying the entire URL, and
of which all other Link properties are substrings.
 
Syntax: location.href
 
pathname Property
The pathname property is a string portion of a URL specifying
how a particular resource can be accessed.
 
Syntax: location.pathname
 
port Property
The port property is a string specifying the communications port
that the server uses.
 
Syntax: location.port
 
protocol Property
The protocol property is the string at the beginning of a URL,
up to and including the first colon (:), which specifies the method
of access to the URL.
 
Syntax: location.protocol
 
search Property
The search property is a string beginning with a question mark
that specifies any query information in an HTTP URL.
 
Syntax: location.search
 
METHODS
 
reload Method
The reload method forces a reload of the window's current document,
i.e. the one contained in the Location.href property.
 
Syntax: location.reload([forceGet])
 
replace Method
The replace method replaces the current History entry
with the specified URL. After calling the replace method, you
cannot navigate back to the previous URL using the browser's Back button.
 
Syntax: location.replace(URL)

JavaScript Location Object

The JavaScript location object is a property of the window object. It can be used to control the web page displayed by the browser.

Properties

• hash – The URL anchor part including the leading hash mark if one exists This is the part of the URL that is used to point to point to a particular part of a page where a named anchor is. The hash is the part containing the # sign that points to the particular page location.
• host – The URL hostname and port. The URL http://ctdp.tripod.com:80/index.html has the host value of ctdp.tripod.com:80. The colon and port is only included when specified. The URL http://ctdp.tripod.com/index.html has the host value of ctdp.tripod.com.
• hostname – The URL hostname section
• href – The entire URL. The following code will load the home CTDP page:

  location.href="http://ctdp.tripod.com/" mce_href="http://ctdp.tripod.com/"

  The following code will display the URL of the current page:

  document.write(location.href)

• pathname – The URL pathname section
• port – The URL port section.
• protocol – The URL protocol section including the colon after the protocol name. The values are normally http: or file:. The following JavaScript code may be used to identify the source of the URL.

  	switch (window.location.protocol)
  	{
  	case "http:":
  	document.write("From Web<BR>\n")
  	break
  	case "file:":
  	document.write("From Local computer<BR>\n")
  	break
  	default:
  	document.write("Unknown Source<BR>\n")
  	break
  	}
  	

• search – The URL query string section. This is the section after and including the question mark.
• target – The URL link's target name.

Methods

• reload() – The current window document is reloaded. If a value of true is passed to the reload function, the reload is forced to do an HTTP GET of the document. This is not normally done but is useful when you think the server contents may be different from your cache.
• replace(URL) – Requires a URL as a parameter. It loads the document at the URL on top of the current document. A new entry entry is not placed in the history object.