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	var displayObj = new Array('et', 'abeek', 'alumni', 'esa', 'community', 'data', 'links');
	
	function displayOffAll() {
		
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	function highlight( elementId ) {
		
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	function moveToUri( module, name ) {
		
		location.href = "http://et.gnu.kr/template.php?module="+ module +"&name="+ name;
	}
	
	function moveToUriZB( module, bbsId ) {
		
		location.href = "http://et.gnu.kr/bbs/zboard.php?id="+ bbsId +"&module="+ module;
	}
	
	var thisYear = parseInt(new Date().getYear());
	var graduatedYear = new Array();
	for (var i=0; i<8; i++) {
		graduatedYear[i] = "y" + (thisYear-i);
	}
	
	function show_hide_layer( elementId ) {
		
		for (var j=0; j<8; j++) {
			if (document.getElementById("t"+ graduatedYear[j])) {
				document.getElementById("t"+ graduatedYear[j]).style.display = 'none';
				document.getElementById(graduatedYear[j]).className = "graduatedYearot";
			}
		}
		document.getElementById(elementId).className = "graduatedYearov";
		document.getElementById("t"+ elementId).style.display = 'block';
	}
	
	function show_esa_member( elementId ) {
		
		for (var k=0; k<8; k++) {
			if (document.getElementById("esa"+ graduatedYear[k])) {
				document.getElementById("esa"+ graduatedYear[k]).style.display = 'none';
				document.getElementById(graduatedYear[k]).className = "graduatedYearot";
			}
		}
		document.getElementById(elementId).className = "graduatedYearov";
		document.getElementById("esa"+ elementId).style.display = 'block';
		
	}
	
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	//-->
