var bg_img = new Array(); 


bg_img[0] = "img/big_bg1.jpg";
bg_img[1] = "img/big_bg2.jpg";
bg_img[2] = "img/big_bg3.jpg";
bg_img[3] = "img/big_bg4.jpg";
bg_img[4] = "img/big_bg5.jpg";


var imgs = new Array(); 


imgs[0] = "img/side_pic1.jpg";
imgs[1] = "img/side_pic2.jpg";
imgs[2] = "img/side_pic4.jpg";
imgs[3] = "img/side_pic5.jpg";
imgs[4] = "img/side_pic3.jpg";
imgs[5] = "img/side_pic6.jpg";
imgs[6] = "img/side_pic7.jpg";
imgs[7] = "img/side_pic8.jpg";
imgs[8] = "img/side_pic9.jpg";
imgs[9] = "img/side_pic10.jpg";
imgs[10] = "img/side_pic11.jpg";
imgs[11] = "img/side_pic12.jpg";
imgs[12] = "img/side_pic13.jpg";
imgs[13] = "img/side_pic14.jpg";
imgs[14] = "img/side_pic15.jpg";
imgs[15] = "img/side_pic16.jpg";
imgs[16] = "img/side_pic17.jpg";
imgs[17] = "img/side_pic18.jpg";

  function getRandom(max) 
  {
	return (Math.random()*100|10)%max;
  }



function doBg(){
	if (document.body){
		document.body.background = bg_img[getRandom(4)];
	}
        setTimeout("doBg()", 25000);
}


   d = 1;
   zim = 4;

function resize()
{
	if (d < 150)
	{
	  d=d + 3;
	  document.getElementById("side1").height=150-d;
	  document.getElementById("side4").height=d;
	}
	else
	{
	  d = 0;
	  document.getElementById("side1").src=document.getElementById("side2").src;
	  document.getElementById("side2").src=document.getElementById("side3").src;
	  document.getElementById("side3").src=document.getElementById("side4").src;
	  document.getElementById("side4").src=imgs[zim];

	  document.getElementById("side1").height=150-d;
	  document.getElementById("side4").height=d;

          zim++;
          if (zim >= imgs.length) zim = 0;
	  setTimeout('resize()', 5000);
	  return;
	}

	setTimeout('resize()', 100);
}