JS Open New Window

UserAuth.js

var UserAuth = {
	openAuth: function(url) {
		var top = (document.body.clientHeight - 420) / 2;
		var left = (document.body.clientWidth - 520) / 2;
		window.open(url, 'connect_window', 'height=400, width=560, toolbar =no, menubar=no, '
		+ 'scrollbars=yes, resizable=no,top=' + top + ',left=' + left + ', location=no, status=no');
	},
	login : function (type) {
	  switch (type) {
	  	case 'sina':
	  		UserAuth.openAuth('/auth_sina?display=window'); break;
	  	default: break;
	  }
	}
};