if (document.images) {
   
     button1 = new Image
     button2 = new Image
	 
     button3 = new Image
     button4 = new Image
	 
     button5 = new Image
     button6 = new Image
	 
     button7 = new Image
     button8 = new Image
	 
     button9 = new Image
     button10 = new Image
	 
     button11 = new Image
     button12 = new Image
	 
     button13 = new Image
     button14 = new Image
	 
     button15 = new Image
     button16 = new Image
	 
     button17 = new Image
     button18 = new Image
	 
     button19 = new Image
     button20 = new Image
	 
     button21 = new Image
     button22 = new Image
	 
	 
	 	 
     button1.src = 'images/company_eng.jpg'
     button2.src = 'images/company-hvr_eng.jpg'
	 
     button3.src = 'images/products_eng.jpg'
     button4.src = 'images/products-hvr_eng.jpg'
	 
     button5.src = 'images/contact_eng.jpg'
     button6.src = 'images/contact-hvr_eng.jpg'
	 
     button7.src = 'images/directors_eng.jpg'
     button8.src = 'images/directors-hvr_eng.jpg'
	 
     button9.src = 'images/facilities_eng.jpg'
     button10.src = 'images/facilities-hvr_eng.jpg'
	 
     button11.src = 'images/partner_eng.jpg'
     button12.src = 'images/partner-hvr_eng.jpg'
	 
     button13.src = 'images/grape_eng.jpg'
     button14.src = 'images/grape-hvr_eng.jpg'
	 
     button15.src = 'images/citrus_eng.jpg'
     button16.src = 'images/citrus-hvr_eng.jpg'
	 
     button17.src = 'images/potato_eng.jpg'
     button18.src = 'images/potato-hvr_eng.jpg'
	 
     button19.src = 'images/watermelon_eng.jpg'
     button20.src = 'images/watermelon-hvr_eng.jpg'
	 
     button21.src = 'images/biological_eng.jpg'
     button22.src = 'images/biological-hvr_eng.jpg'
 }
 
 
 function expand(s)
{
  var td = s;
  var d = td.getElementsByTagName("div").item(0);

  td.className = "menuHover";
  d.className = "menuHover";
}

function collapse(s)
{
  var td = s;
  var d = td.getElementsByTagName("div").item(0);

  td.className = "menuNormal";
  d.className = "menuNormal";
}