function newWindow(link) {
	  var bookWindow;
	  bookWindow = window.open(link, "new1", "width=1000,height=700");
	  if (bookWindow.open) {
	    bookWindow.close;
	  }
	  bookWindow.focus();
	}

function newWindow2(link) {
	  var bookWindow;
	  bookWindow = window.open(link, "new2", "width=650,height=450");
	  if (bookWindow.open) {
	    bookWindow.close;
	  }
	  bookWindow.focus();
	}

function newWindow3(link) {
	  var bookWindow;
	  bookWindow = window.open(link, "new3", "width=525,height=380");
	  if (bookWindow.open) {
	    bookWindow.close;
	  }
	  bookWindow.focus();
	}

function newWindow4(link) {
	  var bookWindow;
	  bookWindow = window.open(link, "new4", "width=1050,height=700");
	  if (bookWindow.open) {
	    bookWindow.close;
	  }
	  bookWindow.focus();
	}