Wheel chair convertible to crutches

The idea is to have a modified wheelchair that can be folded and converted into a crutch so that it is easy to take on stairs as well use on flat surface. The three friends had gone to celebrate one of their friend s birthday in an orphanage. They were moved by the plight of lower limb physically challenged. Sanjay likes reading novels and listening to western music, Ramkishore likes drawing, reading novels, and playing video games. Crazy about computers, he wants to become a computer engineer. Tamil Selvan, who wants to become aeronautical engineer, likes reading non fiction, watching animation movies and day dreaming, as he mentions.