function attowpopup(size, width, height) {
	var browser = navigator.appName;
		width = 990;
		height = 670;
		swidth = ((screen.width/2)-(width/2));
		sheight = ((screen.height/2)-(height/2));
		macwidth = width-16;
		macheight = height-16;
		safariwidth = width;
		safariheight = height;
	
		if ((browser == "Microsoft Internet Explorer") && (navigator.appVersion.lastIndexOf('Mac') != -1)){ 
			if (width < screen.width && height < screen.height) {
				window.open('http://tt.kfsnet.co.jp/','attow','width='+ macwidth +',height='+ macheight +',top='+ sheight +',left='+ swidth +',scrollbars=no,resizable=no');
			}else {
				window.open('http://tt.kfsnet.co.jp/','attow','width='+ macwidth +',height='+ macheight +',top='+ sheight +',left='+ swidth +',scrollbars=yes,resizable=no');
				
			}
		}else if (navigator.userAgent.indexOf('Safari') != -1){
			if (width < screen.width && height < screen.height) {
				window.open('http://tt.kfsnet.co.jp/','attow','width='+ safariwidth +',height='+ safariheight +',top='+ sheight +',left='+ swidth +',scrollbars=no,resizable=no');
			}else {
				window.open('http://tt.kfsnet.co.jp/','attow','width='+ macwidth +',height='+ macheight +',top='+ sheight +',left='+ swidth +',scrollbars=yes,resizable=no');
				
			}
		} else {
			if (width < screen.width && height < screen.height) {
				window.open('http://tt.kfsnet.co.jp/','attow','width='+ width +',height='+ height +',screenY='+ sheight +',screenX='+ swidth +',top=' + sheight + ',left=' + swidth + ',menubar=no,toolbar=no,location=no,status=no,scrollbars=no,resizable=no');
			}else {
				window.open('http://tt.kfsnet.co.jp/','attow','width='+ width +',height='+ height +',screenY='+ sheight +',screenX='+ swidth +',top=' + sheight + ',left=' + swidth + ',menubar=no,toolbar=no,location=no,status=no,scrollbars=yes,resizable=no');
				
			}
		}
}