double taxation between Costa Rica and US?

Hi,

I am a US citizen that was interested in investing in a rental property in Costa Rica.  I am also a newbie investor.  I am wondering if anyone would know if rental income taxes I pay in Costa Rica can be taken into account when I file the US taxes?  I am not aware that there is a double taxation treaty between US and Costa Rica.  i.e. would there be a double taxation?

Regards,

Javier