if (screen.availWidth){
	a=(screen.availWidth -600)/2;
	b=(screen.availHeight -600)/2-50;
}else{
	a=0;
	b=0;
}
function doLoad(numimg) {
	window.open(numimg,'','menubar=no,scrollbars=no,resizable=no,width=600,height=600,top='+b+',left='+a);
}
function detail(url) {
	window.open(url,'','menubar=no,scrollbars=yes,resizable=no,width=600,height=600,top='+b+',left='+a);
}
function set_cookie(tip) {
	if(document.cookie){
		document.cookie = "sort="+tip+"; path=/";
		window.location.reload();
	}
}