"

From 2014.igem.org

function Buttons(lb, rb, p) {

   var leftButton = lb;
   var rightButton = rb;
   var page = p;

/**@description These functions cause the Buttons on the page to change the SubPage when clicked.**/ leftButton.onclick=function(){

   page.turnPage(-1);
   updateButtons(page.getSubPageNum());

};

rightButton.onclick=function(){

   document.getElementById("igem_header").innerHTML = "reached rightbutton on click";
   page.turnPage(1);
   updateButtons(page.getSubPageNum());

};

this.updateButtons function(subPageNum) {

   document.getElementById("igem_header").innerHTML = "reached updateButtons";
   if(subPageNum == 1) {
       leftButton.style.visibility = "hidden";
       rightButton.style.visibility = "visible";
   }
   else if(subPageNum == thisPage.getMaxSubPage()) {
       leftButton.style.visibility = "visible";
       rightButton.style.visibility = "hidden";
   }
   else {
       leftButton.style.visibility = "visible";
       rightButton.style.visibility = "visible";
   }

} }