function img_on(where,imgname,filename) {
	document.images[imgname].src = where + "/" + filename + "2.png";
}

function img_off(where,imgname,filename) {
	document.images[imgname].src = where + "/" + filename + "1.png";
}

function loada(where,what) {
	document.location.href =what + ".html";
}

function propup(what) {
	w = window.open(what + '.html',what,'width=620,height=460,resizable=no,scrollbars=no');
	w.focus();
}