Code for the button prototype used in Button test... comments

#VRML V2.0 utf8 

PROTO Button [
  field SFVec3f 	bPosition 0 0 0
  field SFRotation 	bOrientation 0 1 0 0
  eventOut SFBool 	buttonOn
]
{
Transform {
  translation IS bPosition
  rotation IS bOrientation
  children [
    	DirectionalLight {
    	  color .6 .6 .6
    	  direction -.1 -.5 -.5
    	  intensity .5
    	}
    	DEF buttonTouch TouchSensor {}
	Shape {
	  appearance Appearance {
	     material DEF buttonColor  Material {
		diffuseColor 0 .5 0
		specularColor .5 .5 .5
	     }
	  }
	  geometry IndexedFaceSet {
	     coord Coordinate {
		point [
		-.1 0 0, -.08 -.02 .02, .14 -.02 .02, .16 0 0,
		-.1 0 0, -.1 -.14 0, -.08 -.12 .02, -.08 -.02 .02
		-.08 -.12 .02, -.1 -.14 0, .16 -.14 0, .14 -.12 .02,
		.14 -.02 .02, .14 -.12 .02, .16 -.14 0, .16 0 0,
		-.08 -.02 .02, -.08 -.12 .02, .14 -.12 .02, .14 -.02 .02,
		]
	     }
	     coordIndex [
		0 1 2 3 0 -1
		4 5 6 7 4 -1
		8 9 10 11 8 -1
		12 13 14 15 12 -1
		16 17 18 19 16 -1
	     ]
	  }
	}
   ]
}
DEF ButtonScript Script {
	eventIn SFBool isOver
	eventIn SFBool isActive
	field SFBool itisOver	 	FALSE
	field SFBool alredyPresed 	FALSE
	field SFColor oldColor 	0 .5 0
	eventOut SFBool buttonActive IS 	buttonOn	
	eventOut SFColor changeColor
	url [ "javascript:
	      
	         function isActive (value) {
		if (value == FALSE && itisOver == TRUE){
		       if (alredyPresed == FALSE) {
			alredyPresed = TRUE ;
			oldColor [0] = .5 ;
			oldColor [1] = 0 ;
			changeColor = oldColor ;
			buttonActive = TRUE ;
		       }
		       else {
			alredyPresed = FALSE ;
			oldColor [0] = 0 ;
			oldColor [1] = .5 ;
			changeColor = oldColor ;
			buttonActive = FALSE ;
		      }
		 }			
	         }
	
	         function isOver (value) {
	 	      if (value == TRUE)
		       itisOver = TRUE ;
		       else
		       itisOver = FALSE ;
	        }
	"]
}
ROUTE buttonTouch.isOver TO ButtonScript.isOver
ROUTE buttonTouch.isActive TO ButtonScript.isActive
ROUTE ButtonScript.changeColor TO buttonColor.diffuseColor
}