function thisok(){
	return true;
}

//window.onerror=thisok;

function $$(my){
	return document.getElementById(my);
}

var ClassIcon={};
ClassIcon[0] = new Image();
ClassIcon[0].src = "images/class_icon_2.gif";
ClassIcon[1] = new Image();
ClassIcon[1].src = "images/class_icon_1.gif";
var onid=0;

function StratOpenClass(j){
	var temp=j;
	onid=0;
	OpenClass(temp);
}

function OpenClass(j){
	if(onid == j){
		$$("menu_icon_"+j).src = ClassIcon[1].src;
		$$("menu_small_"+j).style.display = "none";
		
		onid = 0;
	}else{
		$$("menu_icon_"+j).src = ClassIcon[0].src;
		$$("menu_small_"+j).style.display = "";
		
		if(onid != 0){
			$$("menu_icon_"+onid).src = ClassIcon[1].src;
			$$("menu_small_"+onid).style.display = "none";
		}
		
		onid = j;
	}
}

function OpenJob(index){
	if($$("biaoti_"+index).className == "biaoti"){
		$$("biaoti_"+index).className = "biaotiOn";
		$$("jieshao_"+index).style.display = "";
	}else{
		$$("biaoti_"+index).className = "biaoti";
		$$("jieshao_"+index).style.display = "none";
	}
}