function summerWin(){
	st = "scrollbars=yes,resizable=yes,toolbar=no,directories=no,location=no,menubar=no,status=no";
	wx = 620;
	wy = screen.height - (screen.height*0.15);
	x = (screen.width  - wx) / 2;
	y = ((screen.height - wy) / 2) - 30;
	newwin = window.open("summer_school.html","newWinOpen","left="+x+",top="+y+",width="+wx+",height="+wy+","+st);
	newwin.focus();
}

function autumnWin(){
	st = "scrollbars=yes,resizable=yes,toolbar=no,directories=no,location=no,menubar=no,status=no";
	wx = 700;
	wy = screen.height - (screen.height*0.15);
	x = (screen.width  - wx) / 2;
	y = ((screen.height - wy) / 2) - 30;
	newwin = window.open("autumn_school.html","newWinOpen","left="+x+",top="+y+",width="+wx+",height="+wy+","+st);
	newwin.focus();
}