/* Preload the menu buttons to ensure that they are available when required 

	menuHomeHover= new Image(149,59); 
	menuHomeHover.src="./images/btn_home_hover.png"; 
	menuHomeSelected= new Image(149,59); 
	menuHomeSelected.src="./images/btn_home_selected.png"; 

	menuNewsHover= new Image(149,59); 
	menuNewsHover.src="./images/btn_news_hover.png"; 
	menuNewsSelected= new Image(149,59); 
	menuNewsSelected.src="./images/btn_news_selected.png"; 

	menuProductsHover= new Image(149,59); 
	menuProductsHover.src="./images/btn_products_hover.png"; 
	menuProductsSelected= new Image(149,59); 
	menuProductsSelected.src="./images/btn_products_selected.png"; 

	menuContactHover= new Image(149,59); 
	menuContactHover.src="./images/btn_contact_hover.png"; 
	menuContactSelected= new Image(149,59); 
	menuContactSelected.src="./images/btn_contact_selected.png"; 
*/

	function menuSwapImg ( _obj, _state )
	{
		btnType = _obj.id.split("_");
		
		var myStr = new String(document.location);
		if ( myStr.match("css") )
		{
			if ( _state == "hover" )
				_obj.src = "./images/btn_" + btnType[1] + "_" + _state + "_brown.png";
			else
				_obj.src = "./images/btn_" + btnType[1] + "_" + _state + ".png";
		}
		else
			_obj.src = "./images/btn_" + btnType[1] + "_" + _state + ".png";
		return true;
	}