//image rotation created on April 5, 2006 
function image_Rotate()
{

	num1=imgArray1.length;
	 incr1=Math.floor(Math.random()*num1); 
	document.open();
	document.write("<div id='columnPhoto' style='background-image:url(" + imgArray1[incr1] + ");'>&nbsp;</div>"); 
	document.close();
}