objects,properties and methods

i dont really know what these tags or what ever they are in javascript are objects,properties and methods . i have tried seaching on the net but cant seem to make any sence of what im seen so far

http://jennifermadden.com/javascript/objectsPropertiesMethods.html

http://tinf2.vub.ac.be/~dvermeir/java/java_script/model.html