imgpath='../images/';
imgext='.gif';
imgonext='_on'+imgext;
if (document.images) {
	SaveImg = new Image()
	a1 = new Image()
	a2 = new Image()
	a3 = new Image()
	b1 = new Image()
	b2 = new Image()
	b3 = new Image()
	c1 = new Image()
	c2 = new Image()
	c3 = new Image()

	a1.src=imgpath+'a1'+imgonext;
	a2.src=imgpath+'a2'+imgonext;
	a3.src=imgpath+'a3'+imgonext;
	b1.src=imgpath+'b1'+imgonext;
	b2.src=imgpath+'b2'+imgonext;
	b3.src=imgpath+'b3'+imgonext;
	c1.src=imgpath+'c1'+imgonext;
	c2.src=imgpath+'c2'+imgonext;
	c3.src=imgpath+'c3'+imgonext;
};
         function imageon(nom) {
    if (document.images) {
	if (typeof(nom) == 'string') {
		docimg=eval('document.'+nom);
		docimg.src=imgpath+nom+imgonext;
		self.status='';
};
};
};
	function imageof(nom) {
   if (document.images) {
        if (typeof(nom) == 'string') {
		docimg=eval('document.'+nom);
		docimg.src=imgpath+nom+imgext;
		self.status='';
  };
  };
};