//Link Tables
//var nav1 = document.getElementById("nav1");
var nav2 = document.getElementById("nav2");

//Record Links
//var content_nav1 = nav1.innerHTML;
var content_nav2 = nav2.innerHTML;
var content_empty = " ";

//display links
function close_all(){
	
	//Remove Links
	//nav1.innerHTML = content_empty;
	nav2.innerHTML = content_empty;

}

function nav_open(num){

	close_all();

	switch(num){
		case 1:
			table = nav1;
			content = content_nav1;
			break;

		case 2:
			table = nav2;
			content = content_nav2;
			break;
	}
	
	table.innerHTML = content;
	
}

close_all();