It might do, intially, however you're running the risk of doing serious damage to the laptop's components. It is important that the voltage and current ratings are appropriate for your laptop.
I'd recommend something like one of these:
http://www.maplin.co.uk/Module.aspx?ModuleNo=42622
http://www.maplin.co.uk/Module.aspx?ModuleNo=43515
I have used the 90W model for several months with no problems at all.
Ed.