function newWindow(courseDescr) {
	descrWindow=window.open(courseDescr,'Coursedescription','scrollbars=yes,toolbar=yes,resizable=yes,left=20,top=20');
	descrWindow.focus()
	}
	
	  function smallWindow(courseDescr) {
	descrWindow=window.open(courseDescr,'Coursedescription','width=600,height=500,scrollbars=yes,resizable=yes,left=200,top=30');
	descrWindow.focus()
	}

	  function pictureWindow(pictureDescr) {
	descrWindow=window.open(pictureDescr,'allPictures','width=920,height=630,toolbar=no,scrollbars=no,resizable=yes,left=13,top=100');
	descrWindow.focus()
	}