too many java applications?

[summeryday]

Hi ..I am experiencing an odd phenomena, when using IE. Quite often when I go to a site (that is using java), I get a complete freeze..then after about 2 minutes the site viewing is normal again(can scroll, and click on links etc...)
I went to the control panel and looked into, "add/remove programs".
There, I seem to have a few java apps loaded..can I remove one or two?
Have Opera(the best browser around) and may have downloaded new versions with java..maybe that is where they all came from...:-(
Here are the three javas..
Java 2 Runtime Environment Standard Edition V1.3.1
Java 2 Runtime Environment SE . v1.4.0_01
Java SE v1.4.1_01
Thanks in advance....