function WindowOpenUp(sURL){
	window.open(sURL,null,'height=560,width=820,status=yes,toolbar=yes,menubar=yes,location=yes,resizable=yes,scrollbars=yes',false);
}


if (document.images) {	
	
img1on=new Image;
img1on.src="siteart/rollovers/tractor_on.jpg";
img2on=new Image;
img2on.src="siteart/rollovers/spray_on.jpg";
img3on=new Image;
img3on.src="siteart/rollovers/seed_on.jpg";
img4on=new Image;
img4on.src="siteart/rollovers/till_on.jpg";
img5on=new Image;
img5on.src="siteart/rollovers/combine_on.jpg";
img6on=new Image;
img6on.src="siteart/rollovers/temp.jpg";



	
img1off=new Image;
img1off.src="siteart/rollovers/tractor_off.jpg";
img2off=new Image;
img2off.src="siteart/rollovers/spray_off.jpg";
img3off=new Image;
img3off.src="siteart/rollovers/seed_off.jpg";
img4off=new Image;
img4off.src="siteart/rollovers/till_off.jpg";
img5off=new Image;
img5off.src="siteart/rollovers/combine_off.jpg";
img6off=new Image;
img6off.src="siteart/rollovers/guide_off.jpg";
	
	
}


//function to turn images on.
function imgOn (img1) {
	if (document.images) {
		document [img1].src = eval (img1 + "on.src");
	}
}
	
//function to turn images off.
function imgOff (img1) {
	if (document.images) {
		document [img1].src = eval (img1 + "off.src");
	}
}