/* --------------------------------------------------------------------------------------
	RESET
-------------------------------------------------------------------------------------- */
var load_fg = false;
var on_arr = new Array();
var off_arr = new Array();

//body onload action
function fncLoadImage(){
	load_fg = true;
	var imgs = document.getElementsByTagName('img');
	for(var i=0; i<imgs.length; i++){
		var id = imgs[i].getAttribute('id');
		if(id){
			on_arr[id] = new Image();
			off_arr[id] = new Image();
			off_arr[id].src = imgs[i].getAttribute('src');
			on_arr[id].src = imgs[i].getAttribute('src').replace(/_off/, "_on");
		}
	}
}

//swap image action (on)
function fncImageOn(id){
	if(load_fg){
		document.getElementById(id).src = on_arr[id].src;
	}
}

//swap image action (off)
function fncImageOff(id){
	if(load_fg){
		if(id){
			document.getElementById(id).src = off_arr[id].src;
		}else{
			for(name in off_arr){
				fncImageOff(name);
			}
		}
	}
}