function _switch_nav(parent,pos,state)
{
	if(state == 'on')
	{
		document.getElementById('nav_right_pos'+pos).src='img/navigation_item_side_right_hover.gif';
		document.getElementById('nav_left_pos'+pos).src='img/navigation_item_side_left_hover.gif';
		document.getElementById('pos'+pos).style.backgroundImage = 'url(img/navigation_item_background_hover.gif)';
		parent.style.color = '#f3f8d4';
	}
	else if(state == 'off')
	{
		document.getElementById('nav_right_pos'+pos).src='img/navigation_item_side_right.gif';
		document.getElementById('nav_left_pos'+pos).src='img/navigation_item_side_left.gif';
		document.getElementById('pos'+pos).style.backgroundImage = 'url(img/navigation_item_background.gif)';
		parent.style.color = '#7d9121';
	}
}

function _switch_nav_sub(parent,pos,state)
{
	if(state == 'on')
	{
		document.getElementById('nav_sub_right_pos'+pos).src='img/navigation_item_side_right_hover.gif';
		document.getElementById('nav_sub_left_pos'+pos).src='img/navigation_item_side_left_hover.gif';
		document.getElementById('sub_pos'+pos).style.backgroundImage = 'url(img/navigation_item_background_hover.gif)';
		parent.style.color = '#f3f8d4';
	}
	else if(state == 'off')
	{
		document.getElementById('nav_sub_right_pos'+pos).src='img/navigation_item_side_right.gif';
		document.getElementById('nav_sub_left_pos'+pos).src='img/navigation_item_side_left.gif';
		document.getElementById('sub_pos'+pos).style.backgroundImage = 'url(img/navigation_item_background.gif)';
		parent.style.color = '#7d9121';
	}
}