/* navigation creation function */
createNav = function(navId, posY){
	var navIdA = "#"+navId+" a";
	if(navId == activeId){
			$(navIdA).css("backgroundPosition", "0px -"+posY+"px");
	}
	else{
	$(navIdA)
		.css( {backgroundPosition: "0px 0px"} )
		.mouseover(function(){
			$(this).stop().animate({backgroundPosition:"(0px -"+posY+"px)"}, {duration:200})
		})
		.mouseout(function(){			
			$(this).stop().animate({backgroundPosition:"(0px 0px)"}, {duration:160, complete:function(){
				$(this).css({backgroundPosition: "0px 0px"})
			}})
		})
	}
}

$().ready(function(){
	/* main navigation calls */
	createNav("nav1", 47);
	createNav("nav2", 47);
	createNav("nav3", 47);
	createNav("nav4", 47);
	createNav("nav5", 47);
	createNav("sub1", 39);
	createNav("sub2", 39);
	createNav("sub3", 39);
	
});