function popupImage(imagename,imagewidth,imageheight) {
   apopup=window.open(imagename,'_top','toolbar=no,location=no,directories=no,status=no,   screenX=100,screenY=100,left=100,top=100,scrollbars=no,resizable=yes, copyhistory=no,width='+(imagewidth+20)+', height='+(imageheight+30));
}
function loadPictures() {
//large comes first on the index page
	imagea = new Image();	imagea.src = "gifs/handy_angle_large.jpg";
	imageb = new Image();	imageb.src = "gifs/office_interiors_large.jpg";
	imagec = new Image();	imagec.src = "gifs/pallet_racking_large.jpg";
	imaged = new Image();	imaged.src = "gifs/pallet_accessories_large.jpg";
	imagee = new Image();	imagee.src = "gifs/shelving_racking_large.jpg";
	imagef = new Image();	imagef.src = "gifs/small_parts_large.jpg";
	imageg = new Image();	imageg.src = "gifs/mezzanine_floors_large.jpg";
	imageh = new Image();	imageh.src = "gifs/cupboards_lockers_large.jpg";
	imagej = new Image();	imagej.src = "gifs/indus_equip_large.jpg";
//medium 
	imagea = new Image();	imagea.src = "gifs/handy_angle_medium.jpg";
	imageb = new Image();	imageb.src = "gifs/office_interiors_medium.jpg";
	imagec = new Image();	imagec.src = "gifs/pallet_racking_medium.jpg";
	imaged = new Image();	imaged.src = "gifs/pallet_accessories_medium.jpg";
	imagee = new Image();	imagee.src = "gifs/shelving_racking_medium.jpg";
	imagef = new Image();	imagef.src = "gifs/small_parts_medium.jpg";
	imageg = new Image();	imageg.src = "gifs/mezzanine_floors_medium.jpg";
	imageh = new Image();	imageh.src = "gifs/cupboards_lockers_medium.jpg";
	imagej = new Image();	imagej.src = "gifs/indus_equip_medium.jpg";
}