zeit=new Date(); 			// Variables for random number generator.
jran=zeit.getTime();
mt=zeit.getMonth()+1;
var number=4; 				// Set to number of images available.
var random_number=0;			// Becomes generated random  number.
var image1=""; 				// Set to appropriate image name.
var image2=""; 				// Set to appropriate image name.
var soa=4;				// Sommerbeginn.
var soe=10;				// Sommerende.

function randomizeNumber()		// Random number generating function.
{
ia=9301;
ic=49297;
im=233281;
jran = (jran*ia+ic) % im;
random_number=Math.ceil( (jran/(im*1.0)) *number);



if (soa<mt && mt<soe)
{
image2="images/bildwechsel/so_haus_006.jpg";

if (random_number==1)
    image1="images/bildwechsel/so_blumen_003.jpg";
if (random_number==2)
    image1="images/bildwechsel/so_blumen_003.jpg";
if (random_number==3)
    image1="images/bildwechsel/so_blumen_003.jpg";
if (random_number==4)
    image1="images/bildwechsel/so_blumen_003.jpg";
};

else
{
image2="images/bildwechsel/w_haus_005.jpg";

if (random_number==1)			   // Set variable image equal to appropriate image file name.
    image1="images/bildwechsel/anna_bad_004.jpg";
if (random_number==2)
    image1="images/bildwechsel/const_ez_001.jpg";
if (random_number==3)
    image1="images/bildwechsel/w_umgebung_001.jpg";
if (random_number==4)
    image1="images/bildwechsel/w_kirche_001.jpg";
}
};