var ttWidth    = 150;
var ttOffsetX      = 5;            // horizontal offset of left-top corner from mousepointer
var ttOffsetY      = -80;           // vertical offset                   "
var text1      = "Photo by James Franssen. Used by permission.";
var text2      = "Photo by James Franssen. Used by permission.";
var text4      = "Photo courtesy Gilles Charrot. Used by permission.";
var text5      = "Photo by Dustin Brown. Used by permission.";
var text6      = "Photo by Pascal Terrier ('lithotao'). Used by permission.";