I have broken handle on the GE Spacemaker Model JVM130H. Can this be replaced and how?

The door handle can easily be replaced on most microwave ovens. You just have to remove the inner door panel that goes around the perimeter of the glass. The following link explains how to replace the door handle:

http://www.fixya.com/support/r3696942-microwave_oven_door_handle_replacement

The cost usually averages about $20 - $40. Replacements may be purchased at the websites listed in the link I provided. However, price and configuration of your oven also depends upon the MODEL NUMBER. If the model number is correct, the part number(s) for a replacement door handle is WB15X10119 and WB15X10120. The door handle on this model has two pieces.

If you have any questions, please post back with your model number and let me know. I hope this helps you