if (document.images)
   {
     button1In= new Image(30,100);
     button1In.src="images/buttons/home_in.jpg";	 
	 button1Out= new Image(30,100);
     button1Out.src="images/buttons/home_up.jpg";
	 
	 
	 button2In= new Image(30,100);
     button2In.src="images/buttons/products_down.jpg";	 
	 button2Out= new Image(30,100);
     button2Out.src="images/buttons/products_up.jpg";
	 
	 button3In= new Image(30,100);
     button3In.src="images/buttons/custom_down.jpg";	 
	 button3Out= new Image(30,100);
     button3Out.src="images/buttons/custom_up.jpg";
	 
	 button4In= new Image(30,100);
     button4In.src="images/buttons/customer_down.jpg";	 
	 button4Out= new Image(30,100);
     button4Out.src="images/buttons/customer_up.jpg";
	 
	 button5In= new Image(30,100);
     button5In.src="images/buttons/brochure_down.jpg";	 
	 button5Out= new Image(30,100);
     button5Out.src="images/buttons/brochure_up.jpg";
	 
	 button6In= new Image(30,100);
     button6In.src="images/buttons/contact_down.jpg";	 
	 button6Out= new Image(30,100);
     button6Out.src="images/buttons/contact_up.jpg";
	 
	 button7In= new Image(30,100);
     button7In.src="images/buttons/terms_down.jpg";	 
	 button7Out= new Image(30,100);
     button7Out.src="images/buttons/terms_up.jpg";
   }

	function buttonMouseOver(imgName)
	{
		imgDown = eval(imgName + "In.src");
		document[imgName].src = imgDown;
	}
	function buttonMouseOut(imgName)
	{
		imgUp = eval(imgName + "Out.src");
		document[imgName].src = imgUp;
	}