In addition to the original Java version of Physlet Physics, the Open Source Physics collection has a growing collection of JavaScript implementations of Physlet resources.  Physics and physical science teachers can find these itmes by searching the OSP collection for "Physlet package."  Here are links to the one- and two-dimensional kinematics packages:

http://www.compadre.org/osp/items/detail.cfm?ID=13050

http://www.compadre.org/osp/items/detail.cfm?ID=13049

http://www.compadre.org/osp/items/detail.cfm?ID=13348

Note that the Ready-to-run examples provide code to link these examples into other web pages without first downloading the example.