var ttWidth    = 200;
var ttOffsetX      = 10;            // horizontal offset of left-top corner from mousepointer
var ttOffsetY      = -50;           // vertical offset                   "
var text1      = "Photo courtesy Mario Carne. Used by permission.";
var text2      = "Photo by Peter Herring. Used by permission.";
var text3      = "Photo (c) Rob A Reynolds. Used by permission.";
var text4      = "Photo courtesy Dave Russell. Used by permission.";
var text5      = "Photo courtesy David Liberty. Used by permission.";