function ScreenWidth()
{
	var screenWidth = 0;
	var screenHeight = 0;
				
	if (self.screen) 
        return screen.width
	else if (self.java) 
	{   
       	var jkit = java.awt.Toolkit.getDefaultToolkit();
       	var scrsize = jkit.getScreenSize();       
       	return scrsize.width; 
	}
}