function addEvent(obj, evType, fcn) {
	if (obj.addEventListener) {
		obj.addEventListener(evType, fcn, true);
		return true;
	} else if (obj.attachEvent) {
		var r = obj.attachEvent("on"+evType, fcn);
		return r;
	} else {
		return false;
	}
	return true;
}

function showDialog(url, width, height){
	return showWindow(url, false, false, false, false, false, false, true, true, width, height, 0, 0);
}

function showWindow(url, isStatus, isResizeable, isScrollbars, isToolbar, isLocation, isFullscreen, isTitlebar, isCentered, width, height, top, left){
	if (isCentered){
		top = (screen.height - height) / 2;
		left = (screen.width - width) / 2;
	}

	open(url, '_blank', 'status=' + (isStatus ? 'yes' : 'no') + ','
	+ 'resizable=' + (isResizeable ? 'yes' : 'no') + ','
	+ 'scrollbars=' + (isScrollbars ? 'yes' : 'no') + ','
	+ 'toolbar=' + (isToolbar ? 'yes' : 'no') + ','
	+ 'location=' + (isLocation ? 'yes' : 'no') + ','
	+ 'fullscreen=' + (isFullscreen ? 'yes' : 'no') + ','
	+ 'titlebar=' + (isTitlebar ? 'yes' : 'no') + ','
	+ 'height=' + height + ',' + 'width=' + width + ','
	+ 'top=' + top + ',' + 'left=' + left);
}

function displayInfo(info){
	if (info == 'weather')
		showDialog('http://vovnews.vn/Services/Infopage.aspx?svc=weathers', 486, 504);
	if (info == 'forex')
		showDialog('http://vovnews.vn/Services/Infopage.aspx?svc=exchangerates', 486, 544);
	if (info == 'gold')
		showDialog('http://vovnews.vn/Services/Infopage.aspx?svc=goldrates', 416,414);
	if (info == 'tvguide')
		showWindow('http://www3.tuoitre.com.vn/transweb/truyenhinh.htm', false, false, true, false, false, false, true, true, 450, 354, 0, 0);
	if (info == 'lottery')
		showWindow('http://www3.tuoitre.com.vn/Transweb/XoSo.html', false, false, true, false, false, false, true, true, 450, 600, 0, 0);
	if (info == 'stock_ho')
		showWindow('http://www.thanhnien.com.vn/News/Services/CKTT.htm', false, false, true, false, false, false, true, true, 1040, 664);
	if (info == 'stock_ha')
		showWindow('http://www3.tuoitre.com.vn/transweb/chungkhoan_ha.htm', false, false, true, false, false, false, true, true, 770, 770);	
}