function swith(i){
	document.getElementById('swith_img').src='lay/'+i+'.png';
}
function popUp(URL) {
eval("page = window.open(URL, 'panorama', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=600,height=450,left = 340,top = 287').focus();");
}