function showHide(id){
	var tabname = "img/top_tabbt_"+id+".jpg";
	var idname = "listmain"+id;
	
	if(id==1){
		document.getElementById("listmain1").style.display = "block";
		document.getElementById("listmain2").style.display = "none";
		}else if(id==2){
		document.getElementById("listmain1").style.display = "none";
		document.getElementById("listmain2").style.display = "block";
		}

	//return false;
       }


function showcontent(id){
		var nowStyle=document.getElementById(id).style.display;
	
		if(nowStyle=="block"){
		document.getElementById(id).style.display = "none";
		}else{
		document.getElementById(id).style.display = "block";
		}
	}