debugOn=false;
	
if(debugOn){
	alert("main.js");
}

function jmpHistory(thisAmount){
	window.history.go(thisAmount);
}

function imgLoaded(whtImg){
	eval(whtImg+'_loaded = true');
}

function swapImg(whatImg,chgTo){
	if(eval(chgTo+'_loaded')){
		document.getElementById(whatImg).src = eval(chgTo+".src");
	}
}

/*
expandDetail_icon_loaded=false;
var expandDetail_icon = new Image(105,100);
expandDetail_icon.src = "graphics/expand_icon.gif";
expandDetail_icon.onLoad=imgLoaded("expandDetail_icon");

colapseDetail_icon_loaded=false;
var colapseDetail_icon = new Image(105,100);
colapseDetail_icon.src = "graphics/collapse_icon.gif";
colapseDetail_icon.onLoad=imgLoaded("colapseDetail_icon");
*/