function randomNumber(limit){
  return Math.floor(Math.random()*limit);
}

function MM_preloadImages() { //v3.0
 var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
   var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
   if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function randomizePictures() {
 // Get The random numbers
 
 picNum1 = (randomNumber(16))+1;
 
 do
   picNum2 = (randomNumber(16))+1;
 while (picNum2 == picNum1);
 
 do
   picNum3 = (randomNumber(16))+1;
 while ((picNum3 == picNum1) || (picNum3 == picNum2));
 
 
 // Assign pictureImages variables
 pictureImage1 = 'images/header_shots_'+picNum1+'.jpg';
 pictureImage2 = 'images/header_shots_'+picNum2+'.jpg';
 pictureImage3 = 'images/header_shots_'+picNum3+'.jpg';
 
 // Display Images Now
 document.getElementById('pic1').src = pictureImage1;
 document.getElementById('pic2').src = pictureImage2;
 document.getElementById('pic3').src = pictureImage3;
}