window.open( )
Creates a new secondary browser window and loads the referenced resource.
Syntax
WindowObjectReference = window.open(strUrl, strWindowName [, strWindowFeatures]);
Return value and parameters
WindowObjectReference
This is the reference pointing to the newly created browser window. This reference is the return value of the open() method; such reference will exist only if the window.open() instruction succeeded. A global variable is best used to store such reference. This window reference can be useful and is needed to access properties and methods of the new browser window.
strUrl
This is the string of the referenced resource that will be loaded in the new window. strUrl can be an HTML document on the web, it can be an image file or any type of file which is supported by the browser.
strWindowName
This is the string that just names the new window. Such string can be used to be the target of links and forms when the target attribute of an <a> element or of a <form> is specified. This string parameter should not contain any blank space. strWindowName does not specify the title of the new window.
strWindowFeatures
Optional parameter. This parameter is the string which lists the requested window features (window functionalities and toolbars) of the new browser window. This string parameter must not contain any blank space. Each requested window feature must be separated by a comma inside the character string.