function initSubNav(){
	if (document.getElementById){
	//turns current subnav item on except on homepage
		if (!document.getElementById('bodyhome')){
			var subnav = document.getElementById('snav');  	//finds subnav element
			var subnavas = subnav.getElementsByTagName('a'); 	//finds all anchors within subnav
			for (var a=0; a<subnavas.length; a++){		//cycles through each link
				var currenthref=String(subnavas[a].href);	//assigns current link href to a string
				var currentloc=String(document.location);	//assigns current document url to a string
			
				//if the current link href matches the document url the anchor is given a class
				if (unescape(currenthref)==unescape(currentloc)){
					subnavas[a].className="snavon"
				}
			}
	  	}
	}
	
}

window.onload = initSubNav;