tc..the explenation given is good enough(atleast for me...).But if you really can't I'll try to explain it again.
hudclicked is a condition.In other words it stays between 2 colons (
::)
x is the name of a previously stated hud image
hudname=something in a previously stated hudimage.
y is either 0 or 1.If its 1 it means that it checks if you CLICKED the hud.If its 0 it means it checks if you're not clicking it.
example : :hudclicked=something 1:do something(like drop weapon...)
:state=0:hudreset,hudx=50,hudy=50,hudimage=languagebank\english\gamecore\backdrops\basic\gamemenu.tga,hudname=something,hudmake=display
:state=0,hudclicked=something 1:do something