function toggleNav(id)
{
	if(document.getElementById('nav_' + id + '_over').style.display == "none")
	{
		
		if(id != "10a")
		{
			document.getElementById('nav_1_out').style.display = "block"
			document.getElementById('nav_1_over').style.display = "none"
			document.getElementById('nav_2_out').style.display = "block"
			document.getElementById('nav_2_over').style.display = "none"
			document.getElementById('nav_3_out').style.display = "block"
			document.getElementById('nav_3_over').style.display = "none"
			document.getElementById('nav_4_out').style.display = "block"
			document.getElementById('nav_4_over').style.display = "none"
			document.getElementById('nav_5_out').style.display = "block"
			document.getElementById('nav_5_over').style.display = "none"
			document.getElementById('nav_6_out').style.display = "block"
			document.getElementById('nav_6_over').style.display = "none"
			//document.getElementById('nav_7_out').style.display = "block"
			//document.getElementById('nav_7_over').style.display = "none"
			document.getElementById('nav_8_out').style.display = "block"
			document.getElementById('nav_8_over').style.display = "none"
			document.getElementById('nav_9_out').style.display = "block"
			document.getElementById('nav_9_over').style.display = "none"
			document.getElementById('nav_10_out').style.display = "block"
			document.getElementById('nav_10_over').style.display = "none"
			document.getElementById('nav_10a_over').style.display = "none"
		}
		
		document.getElementById('nav_' + id + '_over').style.display = "block"
		document.getElementById('nav_' + id + '_out').style.display = "none"
	}
	else
	{
		document.getElementById('nav_' + id + '_over').style.display = "none"
		document.getElementById('nav_' + id + '_out').style.display = "block"
	}
}