//Open Window

function openwin(url, winname, width, height) {
 /* 横幅800pxのウインドウを開く */
 if(!width)  { width = 820; }
 if(!height) { height= 600; } 

 if(!winname) { winname = 'win'; }

 w = window.open(url, winname,'width=' +width+ ',height=' +height+ ',status=no,scrollbars=yes,directories=no,menubar=no,resizable=yes,toolbar=no');
}