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Javascript Print function - file name

I am using the window.print() function in javaScript to print a page which is executed from a button onClick.

<input type="submit" value="Print" class="register-button" onClick="window.print()"/>

In the popup the default filename is the name of the website found it the tags in the header.

Is there anyway I can set a parameter in the function so the default save filename is what ever I want it to be?

Cheers.

onClick="document.title = 'My new title';window.print();"

You can try it here:

  <html> <head> <title>My title</title> </head> <body> <button onClick="document.title = 'My new title';window.print();">Try it</button> <p id="demo"></p> </body> </html> 

According to MDC, window.print() has no parameters to control anything.

https://developer.mozilla.org/en/DOM/window.print

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