img0_on = new Image(29,147);
		img0_on.src="images/menu/set2/home_on.gif";
		img1_on = new Image(29,147);
		img1_on.src="images/menu/set2/ethylene_story_on.gif";
		img2_on = new Image(29,147);
		img2_on.src="images/menu/set2/how_the_egg_works_on.gif";
		img3_on = new Image(29,147);
		img3_on.src="images/menu/set2/health_issues_on.gif";
		img4_on = new Image(29,147);
		img4_on.src="images/menu/set2/environment_issues_on.gif";
		img5_on = new Image(29,147);
		img5_on.src="images/menu/set2/storage_issues_on.gif";
		img6_on = new Image(29,147);
		img6_on.src="images/menu/set2/find_retailer_on.gif";
		img7_on = new Image(29,147);
		img7_on.src="images/menu/set2/purchase_on.gif";
		img8_on = new Image(29,135);
		img8_on.src="images/top_right_on.gif";


		img0_off = new Image(29,147);
		img0_off.src="images/menu/set2/home.gif";
		img1_off = new Image(29,147);
		img1_off.src="images/menu/set2/ethylene_story.gif";
		img2_off = new Image(29,147);
		img2_off.src="images/menu/set2/how_the_egg_works.gif";
		img3_off = new Image(29,147);
		img3_off.src="images/menu/set2/health_issues.gif";
		img4_off = new Image(29,147);
		img4_off.src="images/menu/set2/environment_issues.gif";
		img5_off = new Image(29,147);
		img5_off.src="images/menu/set2/storage_issues.gif";
		img6_off = new Image(29,147);
		img6_off.src="images/menu/set2/find_retailer.gif";
		img7_off = new Image(29,147);
		img7_off.src="images/menu/set2/purchase.gif";
		img8_off = new Image(29,135);
		img8_off.src="images/top_right.gif";
		



		function over_image(parm_name)
		{
		document[parm_name].src = eval(parm_name + "_on.src");
		}
		function off_image(parm_name)
		{
		document[parm_name].src = eval(parm_name + "_off.src");
		}