```javascript
page = new WebPage()
if phantom.args.length < 2 or phantom.args.length > 3
console.log "Usage: phantomjs screenshot.coffee URL filename"
phantom.exit()
else
address = phantom.args[0]
output = phantom.args[1]
ua = "User-Agent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.101 Safari/537.11"
page.settings.userAgent = ua
page.customHeaders = "Accept-Language": "sv-SE,sv;q=0.8,en-US;q=0.6,en;q=0.4"
page.viewportSize =
width: 1024
height: 760
page.open address, (status) ->
if status isnt "success"
console.log "Unable to load the address!"
phantom.exit()
else
window.setTimeout (->
page.clipRect =
top: 0
left: 0
width: 1024
height: 760
page.render output
console.log "Exiting"
phantom.exit()
), 200
```
Usage:
```javascript
screenshot.coffee http://google.com google.png
```