var idList = ["e","c","f","g","s",]

var ImgObj = new Object();

for ( var i = 0; i < idList.length; i++ ){
	var who = idList[ i ];
	ImgObj[ who ] = new Object();
	ImgObj[ who ].img = new Image();
	ImgObj[ who ].img.src = "res/contact_nav_"+ who +".gif"
	ImgObj[ who ].over = new Image();
	ImgObj[ who ].over.src = "res/contact_nav_"+ who +"_over.gif"
	
	ImgObj[ who ].txt = who + "_txt";
}

/*var e = new Object();
e.img  = new Image();
e.img.src = "res/contact_nav_e.gif"
e.over  = new Image();
e.over.src = "res/contact_nav_e_over.gif"*/


var curr = null;
var curr_txt = null;
var curr_nav = null;


function showDiv( who, targ ){
	//alert("who: " + who.id )
	
	if(curr_txt != null) curr_txt.style.display = "none";
	if(curr_nav != null) curr_nav.src = ImgObj[ curr ].img.src;
	
	curr = targ;
	curr_nav = document.getElementById( targ + "_img" );
	curr_txt = document.getElementById( targ + "_txt" );
	
	//document.images['chin'].src = chinese.src;
	//document.images['chin'].src = chinese.src;
	curr_nav.src = ImgObj[ targ ].over.src;
	curr_txt.style.display = "block";	
}




/*
Scroll image in Contact pages.
*/

var scroller;
var tID;
var maxY = -15;
var firstY = -170;
var y = firstY;

function init(){
	/// first nav item
	curr = 'e';
	curr_nav = document.getElementById( curr + "_img" );
	curr_txt = document.getElementById( curr + "_txt" );
	
	/// scrolling image
	scroller = document.getElementById("nav_img");	
	scroller.style.backgroundPosition = "-36px "+ y +"px"
	tID = setTimeout("moveY()",2000);
}
function moveY(){
	y++;
	scroller.style.backgroundPosition = "-36px "+ y +"px"
	if(y < maxY){
		tID = setTimeout("moveY()",40);
	}
}

window.onload = function() { init();};