// preload thumb images used in swapping

thumb1 = new Image();
thumb1.src = rootPath + "newMachines/shigiya/images/enlargements/GAE30.jpg"

thumb2 = new Image();
thumb2.src = rootPath + "newMachines/shigiya/images/enlargements/GAE30_inprocess.jpg"

thumb3 = new Image();
thumb3.src = rootPath + "newMachines/shigiya/images/enlargements/GAE30_tailstock.jpg"

thumb4 = new Image();
thumb4.src = rootPath + "newMachines/shigiya/images/enlargements/GAE30_wheelhead.jpg"

thumb5 = new Image();
thumb5.src = rootPath + "newMachines/shigiya/images/enlargements/GAE30_workhead.jpg"