function go() {

  hideSlide("slide1");
  hideSlide("slide2");
  hideSlide("slide3");
  hideSlide("slide4");

  setTimeout("initImage('pic1',4000)",100); 
  setTimeout('displaySlide("slide1")',100);
  setTimeout('displaySlide("slideText")',100);  

  setTimeout("initImage('pic2',4000)",4500);
  setTimeout('hideSlide("slide1")',4500);
  setTimeout('displaySlide("slide2")',4500);

  setTimeout("initImage('pic3',4000)",9000);
  setTimeout('hideSlide("slide2")',9000);
  setTimeout("displaySlide('slide3')",9000);
  
  setTimeout("initImage('pic4',4000)",13500);
  setTimeout('hideSlide("slide3")',13500);
  setTimeout("displaySlide('slide4')",13500);  
  
  setTimeout('hideSlide("slideText")',18000);  
  setTimeout('hideSlide("slide4")',18000);

  setTimeout("initImage('slide0',4000)",18000);
  
  setTimeout("go()",22500);

  }

function displaySlide(slide) {document.getElementById(slide).style.display = "block";}
function hideSlide(slide) {document.getElementById(slide).style.display = "none";}



function initImage(imageId,interval) {
  image = document.getElementById(imageId);
  setOpacity(image, 0);
  image.style.display = 'block';
  fadeIn(imageId,0);
  window.setTimeout("fadeOut('"+imageId+"'," + "100" + ")",interval);  
  }

function initPage(imageId,interval) { 
  image = document.getElementById(imageId);
  setOpacity(image, 0);
  image.style.display = 'block';
  fadeIn(imageId,0); 
  }
  
function setOpacity(obj, opacity) {
  opacity = (opacity == 100)?99.999:opacity;
  obj.style.filter       = "alpha(opacity="+opacity+")";
  obj.style.KHTMLOpacity = opacity/100;
  obj.style.MozOpacity   = opacity/100;
  obj.style.opacity      = opacity/100;
  }

function fadeIn(objId,opacity) {
  if (document.getElementById) {
    obj = document.getElementById(objId);
    if (opacity <= 100) {
      setOpacity(obj, opacity);
      opacity += 10;
      window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 50);  /* fade-in is .5 sec */
    }
  }
}

function fadeOut(objId,opacity) {
  if (document.getElementById) {
    obj = document.getElementById(objId);
    if (opacity >= 0) {
      opacity = opacity - 10;
      setOpacity(obj, opacity);
      window.setTimeout("fadeOut('"+objId+"',"+opacity+")", 50); 
      }
    else {
      obj.style.display = "none";
      }
   }
  }


function checkform() {
  if(document.getElementById('first').value == "") {
    missingAlert()
    }
  else if(document.getElementById('last').value == "") {
    missingAlert()
    }
  else if(document.getElementById('phone').value == "") {
    missingAlert()
    }
  else if(document.getElementById('email').value == "") {
    missingAlert()
    }
  }
  
function missingAlert() {alert('Some required form information is missing.  Please return to the form and fill in the missing data.') } 

function address1() {
  var rhs = "integrativedge";
  var lhs = "yahoo.com";
  document.getElementById("address1Mailto").href = 'mailto://' + rhs + '@' + lhs;
  } 

function address2() {
  var rhs = "customerservice";
  var lhs = "integrativedge";
  document.getElementById("address2Mailto").href = 'mailto://' + rhs + '@' + lhs;
  document.getElementById("address2Mailto").innerHTML = rhs + '@' + lhs;
  }