//Script adapted from www.uchicago.edu mainpage 12/16/04
//
var scriptsOn = 0
if ((navigator.appName == 'Netscape' && parseFloat(navigator.appVersion) >= 3) || (parseFloat(navigator.appVersion) >= 4)){scriptsOn = 1}
if (scriptsOn == 1){
//rotate the lab picture and headline
   var labDelay = 4000  //time in milliseconds
   var labNum = 1

    //the following lines avoid the irregular timing glitch in NN4
   var NN4Skip = 0
   if ((navigator.appName == 'Netscape') && (parseFloat(navigator.appVersion) >= 4)){
      NN4Skip = 1
   }

   //preload pictures and headlines
labPhotos = new Array()
labPhotos[1] = new Image()
labPhotos[1].src = "rotates/1.jpg"
labPhotos[2] = new Image()
labPhotos[2].src = "rotates/2.jpg"
labPhotos[3] = new Image()
labPhotos[3].src = "rotates/3.jpg"
labPhotos[4] = new Image()
labPhotos[4].src = "rotates/4.jpg"
labPhotos[5] = new Image()
labPhotos[5].src = "rotates/5.jpg"
labPhotos[6] = new Image()
labPhotos[6].src = "rotates/6.jpg"
labPhotos[7] = new Image()
labPhotos[7].src = "rotates/7.jpg"
labPhotos[8] = new Image()
labPhotos[8].src = "rotates/8.jpg"
labPhotos[9] = new Image()
labPhotos[9].src = "rotates/9.jpg"
labPhotos[10] = new Image()
labPhotos[10].src = "rotates/10.jpg"
labPhotos[11] = new Image()
labPhotos[11].src = "rotates/11.jpg"
labPhotos[12] = new Image()
labPhotos[12].src = "rotates/12.jpg"
labPhotos[13] = new Image()
labPhotos[13].src = "rotates/13.jpg"
labPhotos[14] = new Image()
labPhotos[14].src = "rotates/14.jpg"
labPhotos[15] = new Image()
labPhotos[15].src = "rotates/15.jpg"
labPhotos[16] = new Image()
labPhotos[16].src = "rotates/16.jpg"	  
} // end "if scriptsOn" statements (functions have to be outside of that in NN3)


   function rotatelab(NN4Allow){
      if ((NN4Skip == 0) || (NN4Allow == 1)) { 
         labNum++
         if(labNum == labPhotos.length) {labNum = 1}
         eval(NNDoc + "labPhoto.src = labPhotos[labNum].src")
      }
   }
//account for different browsers' object models
var NNDoc = (navigator.appName.indexOf('Microsoft') != -1)? "" : "document."
// JavaScript Document