// JavaScript Document

  function opacity(id, opacStart, opacEnd, millisec) {
      //speed for each frame
      var speed = Math.round(millisec / 100);
      var timer = 0;
  
      //determine the direction for the blending, if start and end are the same nothing happens
      if(opacStart > opacEnd) {
          for(i = opacStart; i >= opacEnd; i--) {
              setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
              timer++;
          }
      } else if(opacStart < opacEnd) {
          for(i = opacStart; i <= opacEnd; i++)
              {
              setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
              timer++;
          }
      }
  }

  //change the opacity for different browsers
  function changeOpac(opacity, id) {
      var object = document.getElementById(id).style;
      object.opacity = (opacity / 100);
      object.MozOpacity = (opacity / 100);
      object.KhtmlOpacity = (opacity / 100);
      object.filter = "alpha(opacity=" + opacity + ")";
  }
  
  function fade() {
  var i = 0;
      setTimeout("document.getElementById('boxover').style.display = 'block'","1000");
      setTimeout("opacity('boxover', 0, 100, 500)","600");
      setTimeout("opacity('boxover', 100, 0, 500)","6500");
      clearTimeout();
  }