function fixed_win(lnk,wd,hg)
{
	var new_win;
	
 	var lf = screen.availWidth/2 - wd/2;
	var tp = screen.availHeight/2 - hg/2;
	
	new_win = window.open(lnk,'_blank','width='+wd+',height='+hg+',top='+tp+',left='+lf+',toolbar=no,menubar=no,scrollbars=yes,resizable=no,location=no,directories=no,status=no');
}

function big_win(lnk)
{
	var new_win;
	
 	var wd = screen.availWidth - 200;
	var hg = screen.availHeight - 200;
	
	new_win = window.open(lnk,'_blank','width='+wd+',height='+hg+',top=100,left=100,toolbar=no,menubar=no,scrollbars=yes,resizable=no,location=no,directories=no,status=no');
}