//window.onload = function(){
	id = new Array(4);
	id[0]="tab00";
	id[1]="tab01";
	id[2]="tab02";
	id[3]="tab03";
//};

// 
function change_disp(no){
	for(var i=0;i<4;i++){
		if(no==i){
			document.getElementById(id[i]).style.display="block";


		}else{
			document.getElementById(id[i]).style.display="none";
		}
	}
}