function SendToAFriend(){
	windowOpener(350, 475, "mywin", "assets/recommend.php?loc=http://www.cgiunco.com/greenit/english/index.html")

}

function windowOpener(windowHeight, windowWidth, windowName, windowUri)
{
	var centerWidth = (window.screen.width - windowWidth) / 2;
	var centerHeight = (window.screen.height - windowHeight) / 2;

	newWindow = window.open(windowUri, windowName, 'resizable=0, status=0, width=' + windowWidth + 
        	',height=' + windowHeight + 
        	',left=' + centerWidth + 
        	',top=' + centerHeight);

    	newWindow.focus();
    	return newWindow.name;
}