// JavaScript Document
function left_right(){
	var gao=document.getElementById("er_right").scrollHeight;
	var zone=gao-40;
	//window.alert(zone);
	document.getElementById("er_left").style.height=zone+"px";
	//var zzl=document.getElementById("er_left").style.height;
	//window.alert(zzl);
}

/*div*/

function open_nva(obj){
	for(var i = 0 ;i <2 ;i++){
		if(obj.id == "nva"+i){
			obj.className = "jstest2";	
		}else{
			document.getElementById("nva"+i).className = "jstest1";	
		}
	}	 
}	
function open_nva1(obj){
	for(var i = 0 ;i <4 ;i++){
		if(obj.id == "nva1"+i){
			obj.className = "jstest2";	
		}else{
			document.getElementById("nva1"+i).className = "jstest1";	
		}
	}	 
}	
function open_nva2(obj){
	for(var i = 3 ;i <5 ;i++){
		if(obj.id == "nva"+i){
			obj.className = "jstest2";	
		}else{
			document.getElementById("nva"+i).className = "jstest1";	
		}
	}	 
}
function open_nva3(obj){
	for(var i = 5 ;i <10 ;i++){
		if(obj.id == "nva"+i){
			obj.className = "jstest2";	
		}else{
			document.getElementById("nva"+i).className = "jstest1";	
		}
	}	 
}

function close_nva(str){
	var in1=document.getElementById('nva1').className;

	var in2=document.getElementById('nva2').className;
		//alert(in1);alert(in2);
	if(in1=='jstest1'&& in2=='jstest1')
	{
		document.getElementById('nva1').className="jstest2";
	}else {document.getElementById(str).className="jstest1";}
}