Whoa, JavaScript is so much better then PHP.
It's like people living near Albany NY who are "so close to Boston, NYC, and Montreal!" Yeah you may be close to "there," but you aren't there. I can assure you the people living in Boston, NYC and Montreal are never excited to visit Albany.
Second, there are a lot of frameworks for so many reasons. One big reason is the each browser has a slightly different DOM implementation. Frameworks just smooth over the differences.
Javascript the language, and most libraries/APIs written for Javascript using Javascript idioms, are very pleasant.