var ttWidth    = 250;
var ttOffsetX      = 10;            // horizontal offset of left-top corner from mousepointer
var ttOffsetY      = -50;           // vertical offset                   "
var text1      = "Yes, the rock in my image at the top of the page is falling. It was balanced for a while, but smooth surfaces are tricky. No, the top rock in Bill's balance on the right is <em>not</em> falling. He's really good at this, and it probably stayed up until he took it down -- for safety -- when he went home.";