function show_big_img(file, height)
{
	if(!height) height=580;
	var width=560;
	var left=180;
	var top=100;

	wopener = window.open($('server_www').value+'image/detail/?image='+file, 'image', 'toolbar=0,location=0,status=1,resizable=1,scrollbars=0,width='+ width +',height='+ height +',top='+ top +',left='+ left);
	wopener.focus();
	
	return wopener;	
}