//ÅǹöÆ°°ü·Ã
function dtxtview1(num){
	max=document.getElementById("tab1").getElementsByTagName("a").length;
	for(i=1;i<=max;i++){
		document.getElementById("atab"+i).src = document.getElementById("atab"+i).src.replace("_.jpg", ".jpg");
		document.getElementById("atabv"+i).style.display = "none";
	}
		document.getElementById("atab"+num).src = document.getElementById("atab"+num).src.replace(".jpg", "_.jpg");
		document.getElementById("atabv"+num).style.display = "block";
}