 <!--
  	var RndSec = new Date();
	RndSec2 = RndSec.getSeconds() / 3;
	RndSec1 = Math.round(RndSec2);
	//alert(RndSec1);
	//var RndSec1 = Math.round(Math.random() * 20);
//	alert(RndTest);
	
	if (RndSec1 == 1)
    {
  		document.Img.src = './images/chemHomeLeft.jpg';
	}
	else if (RndSec1 == 1)
	{
		document.Img.src = './images/chemHomeLeft20.jpg';
	}
	else if (RndSec1 == 2)
	{
		document.Img.src = './images/chemHomeLeft14.jpg';
	}
	else if (RndSec1 == 3)
	{
		document.Img.src = './images/chemHomeLeft16.jpg';
	}
	else if (RndSec1 == 4)
	{
		document.Img.src = './images/chemHomeLeft1.jpg';
	}
	else if (RndSec1 == 5)
	{
		document.Img.src = './images/chemHomeLeft18.jpg';
	}
	else if (RndSec1 == 6)
	{
		document.Img.src = './images/chemHomeLeft6.jpg';
	}
	else if (RndSec1 == 7)
	{
		document.Img.src = './images/chemHomeLeft11.jpg';
	}
	else if (RndSec1 == 8)
	{
		document.Img.src = './images/chemHomeLeft19.jpg';
	}
	else if (RndSec1 == 9)
	{
		document.Img.src = './images/chemHomeLeft15.jpg';
	}
	else if (RndSec1 == 10)
	{
		document.Img.src = './images/chemHomeLeft7.jpg';
	}
	else if (RndSec1 == 11)
	{
		document.Img.src = './images/chemHomeLeft3.jpg';
	}
	else if (RndSec1 == 12)
	{
		document.Img.src = './images/chemHomeLeft12.jpg';
	}
	else if (RndSec1 == 13)
	{
		document.Img.src = './images/chemHomeLeft4.jpg';
	}
	else if (RndSec1 == 14)
	{
		document.Img.src = './images/chemHomeLeft8.jpg';
	}
	else if (RndSec1 == 15)
	{
		document.Img.src = './images/chemHomeLeft5.jpg';
	}
	else if (RndSec1 == 16)
	{
		document.Img.src = './images/chemHomeLeft13.jpg';
	}
	else if (RndSec1 == 17)
	{
		document.Img.src = './images/chemHomeLeft9.jpg';
	}
	else if (RndSec1 ==18)
	{
		document.Img.src = './images/chemHomeLeft17.jpg';
	}
	else if (RndSec1 == 19)
	{
		document.Img.src = './images/chemHomeLeft2.jpg';
	}
	else
	{
		document.Img.src = './images/chemHomeLeft10.jpg';
	}

  //-->