var i=0;
var freezetime=150;
var fadetime=10;
var hidetime=5;
var difference=10;

function setOpacity(id, value) 
{
   document.getElementById(id).style.opacity = value/10;
   document.getElementById(id).style.filter = 'alpha(opacity=' + value*10 + ')';
}

function fade()
{
i++;
//--------------------------------------------------------------------------------------
 if(i<=freezetime)
 {
  setOpacity("slideshow1", "10");
 };
 if(i<=(freezetime+fadetime)&&i>freezetime)
 {
  setOpacity("slideshow1", (freezetime+fadetime)-i);
 };
 if(i==(freezetime+fadetime+2))
 {
  document.image1.src="img/photo2.jpg";
 }
 if(i<=(freezetime+fadetime*2+hidetime)&&i>(freezetime+fadetime+hidetime))
 {
  setOpacity("slideshow1", i-(freezetime+fadetime+hidetime));
 };
 if(i<=(freezetime*2+fadetime*3+hidetime)&&i>(freezetime*2+fadetime*2+hidetime))
 {
  setOpacity("slideshow1", (freezetime*2+fadetime*3+hidetime)-i);
 };
 if(i==(freezetime*2+fadetime*3+hidetime+2))
 {
  document.image1.src="img/photo3.jpg";
 }
 if(i<=(freezetime*2+fadetime*4+hidetime*2)&&i>(freezetime*2+fadetime*3+hidetime*2))
 {
  setOpacity("slideshow1", i-(freezetime*2+fadetime*3+hidetime*2));
 };
 if(i<=(freezetime*3+fadetime*5+hidetime*2)&&i>(freezetime*3+fadetime*4+hidetime*2))
 {
  setOpacity("slideshow1", (freezetime*3+fadetime*5+hidetime*2)-i);
 };
 if(i==(freezetime*3+fadetime*5+hidetime*2+2))
 {
  document.image1.src="img/photo1.jpg";
 }
 if(i<=(freezetime*3+fadetime*6+hidetime*3)&&i>(freezetime*3+fadetime*5+hidetime*3))
 {
  setOpacity("slideshow1", i-(freezetime*3+fadetime*5+hidetime*3));
 };
//--------------------------------------------------------------------------------------
 if(i<=(freezetime+difference))
 {
  setOpacity("slideshow2", "10");
 };
 if(i<=(freezetime+fadetime+difference)&&i>(freezetime+difference))
 {
  setOpacity("slideshow2", (freezetime+fadetime+difference)-i);
 };
 if(i==(freezetime+fadetime+2+difference))
 {
  document.image2.src="img/graph2.jpg";
 }
 if(i<=(freezetime+fadetime*2+hidetime+difference)&&i>(freezetime+fadetime+hidetime+difference))
 {
  setOpacity("slideshow2", i-(freezetime+fadetime+hidetime+difference));
 };
 if(i<=(freezetime*2+fadetime*3+hidetime+difference)&&i>(freezetime*2+fadetime*2+hidetime+difference))
 {
  setOpacity("slideshow2", (freezetime*2+fadetime*3+hidetime+difference)-i);
 };
 if(i==(freezetime*2+fadetime*3+hidetime+2+difference))
 {
  document.image2.src="img/graph3.jpg";
 }
 if(i<=(freezetime*2+fadetime*4+hidetime*2+difference)&&i>(freezetime*2+fadetime*3+hidetime*2+difference))
 {
  setOpacity("slideshow2", i-(freezetime*2+fadetime*3+hidetime*2+difference));
 };
 if(i<=(freezetime*3+fadetime*5+hidetime*2+difference)&&i>(freezetime*3+fadetime*4+hidetime*2+difference))
 {
  setOpacity("slideshow2", (freezetime*3+fadetime*5+hidetime*2+difference)-i);
 };
 if(i==(freezetime*3+fadetime*5+hidetime*2+2+difference))
 {
  document.image2.src="img/graph1.jpg";
 }
 if(i<=(freezetime*3+fadetime*6+hidetime*3+difference)&&i>(freezetime*3+fadetime*5+hidetime*3+difference))
 {
  setOpacity("slideshow2", i-(freezetime*3+fadetime*5+hidetime*3+difference));
 };
//--------------------------------------------------------------------------------------
 if(i<=(freezetime+difference*2))
 {
  setOpacity("slideshow3", "10");
 };
 if(i<=(freezetime+fadetime+difference*2)&&i>(freezetime+difference*2))
 {
  setOpacity("slideshow3", (freezetime+fadetime+difference*2)-i);
 };
 if(i==(freezetime+fadetime+2+difference*2))
 {
  document.image3.src="img/web2.jpg";
 }
 if(i<=(freezetime+fadetime*2+hidetime+difference*2)&&i>(freezetime+fadetime+hidetime+difference*2))
 {
  setOpacity("slideshow3", i-(freezetime+fadetime+hidetime+difference*2));
 };
 if(i<=(freezetime*2+fadetime*3+hidetime+difference*2)&&i>(freezetime*2+fadetime*2+hidetime+difference*2))
 {
  setOpacity("slideshow3", (freezetime*2+fadetime*3+hidetime+difference*2)-i);
 };
 if(i==(freezetime*2+fadetime*3+hidetime+2+difference*2))
 {
  document.image3.src="img/web3.jpg";
 }
 if(i<=(freezetime*2+fadetime*4+hidetime*2+difference*2)&&i>(freezetime*2+fadetime*3+hidetime*2+difference*2))
 {
  setOpacity("slideshow3", i-(freezetime*2+fadetime*3+hidetime*2+difference*2));
 };
 if(i<=(freezetime*3+fadetime*5+hidetime*2+difference*2)&&i>(freezetime*3+fadetime*4+hidetime*2+difference*2))
 {
  setOpacity("slideshow3", (freezetime*3+fadetime*5+hidetime*2+difference*2)-i);
 };
 if(i==(freezetime*3+fadetime*5+hidetime*2+2+difference*2))
 {
  document.image3.src="img/web1.jpg";
 }
 if(i<=(freezetime*3+fadetime*6+hidetime*3+difference*2)&&i>(freezetime*3+fadetime*5+hidetime*3+difference*2))
 {
  setOpacity("slideshow3", i-(freezetime*3+fadetime*5+hidetime*3+difference*2));
 };
//--------------------------------------------------------------------------------------
 if(i<=(freezetime+difference*3))
 {
  setOpacity("slideshow4", "10");
 };
 if(i<=(freezetime+fadetime+difference*3)&&i>(freezetime+difference*3))
 {
  setOpacity("slideshow4", (freezetime+fadetime+difference*3)-i);
 };
 if(i==(freezetime+fadetime+2+difference*3))
 {
  document.image4.src="img/shop2.jpg";
 }
 if(i<=(freezetime+fadetime*2+hidetime+difference*3)&&i>(freezetime+fadetime+hidetime+difference*3))
 {
  setOpacity("slideshow4", i-(freezetime+fadetime+hidetime+difference*3));
 };
 if(i<=(freezetime*2+fadetime*3+hidetime+difference*3)&&i>(freezetime*2+fadetime*2+hidetime+difference*3))
 {
  setOpacity("slideshow4", (freezetime*2+fadetime*3+hidetime+difference*3)-i);
 };
 if(i==(freezetime*2+fadetime*3+hidetime+2+difference*3))
 {
  document.image4.src="img/shop3.jpg";
 }
 if(i<=(freezetime*2+fadetime*4+hidetime*2+difference*3)&&i>(freezetime*2+fadetime*3+hidetime*2+difference*3))
 {
  setOpacity("slideshow4", i-(freezetime*2+fadetime*3+hidetime*2+difference*3));
 };
 if(i<=(freezetime*3+fadetime*5+hidetime*2+difference*3)&&i>(freezetime*3+fadetime*4+hidetime*2+difference*3))
 {
  setOpacity("slideshow4", (freezetime*3+fadetime*5+hidetime*2+difference*3)-i);
 };
 if(i==(freezetime*3+fadetime*5+hidetime*2+2+difference*3))
 {
  document.image4.src="img/shop1.jpg";
 }
 if(i<=(freezetime*3+fadetime*6+hidetime*3+difference*3)&&i>(freezetime*3+fadetime*5+hidetime*3+difference*3))
 {
  setOpacity("slideshow4", i-(freezetime*3+fadetime*5+hidetime*3+difference*3));
 };
 if(i==(freezetime*3+fadetime*6+hidetime*3+1+difference*3))
 {
  i=0;
 };
//--------------------------------------------------------------------------------------

setTimeout('fade();',20);
}