function flash_play(file_name, width, height) {
		document.write("			<EMBED SRC=\"" + file_name + "\" QUALITY=high PLUGINSPAGE=\"http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash\" TYPE=\"application/x-shockwave-flash\" WIDTH=\"" + width + "\" HEIGHT=\"" + height + "\"></EMBED>");
	}

	function mv_play(file_name, auto_play) {
		document.write("			<EMBED SRC=\"" + file_name + "\" QUALITY=high PLUGINSPAGE=\"http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash\" TYPE=\"video/mpeg\" autostart=\"" + auto_play + "\" loop=\"false\"></EMBED>");
	}

	//왼쪽 공백을 모두 제거 한다
	function chrLTrim(instr) {
		var i =0;
		var len = instr.length;
		var b;
		if (len==0) {
			return instr;
		}
		while (1) {
			if (instr.substr(i,1)==" ") {
				i++;
				continue;
			}
			else {
				b = instr.substring(i, len);
				return b;
				break;
			}
		}
	}

	//백과사전
	function openNewWindow(win, kind){
	  var openWin="_blank"

		document.form2.QueryText.value = chrLTrim(document.form2.QueryText.value);

		if (document.form2.QueryText.value.length==0){
			alert("검색어를 입력하세요");
			document.form2.QueryText.focus();	
			return false;
		}
			var DBase;	
			var j=document.form2.DBase.length; 
			for (i=0; i<j; i++){
				if(document.form2.DBase[i].checked) var DBase = document.form2.DBase[i].value;
			}
			//openWin = open( 'http://edunet'+kind+'.britannica.co.kr/bol/search.asp?DBase='+DBase+'&QueryText='+escape(document.form2.QueryText.value)+'&Action=FilterSearch&Filter='+escape('commonflt.hts')+'&string_edu=kor_edu_bri', win, 'toolbar=no, status=no, scrollbars=yes, menubar=no, resizable=yes');
			if (DBase == "Images")
				openWin = open( 'http://edunet'+kind+'.britannica.co.kr/bol/multi.asp?QueryText='+document.form2.QueryText.value+'&DBase='+DBase+'&string_edu=kor_edu_bri', win, 'toolbar=no, status=no, scrollbars=yes, menubar=no, resizable=yes');
			else
				openWin = open( 'http://edunet'+kind+'.britannica.co.kr/search/s97_utf8.exe?QueryText='+document.form2.QueryText.value+'&DBase='+DBase+'&ResultCount=10', win, 'toolbar=no, status=no, scrollbars=yes, menubar=no, resizable=yes');
			openWin.focus();
			return false;
	}

	 //검색어의 유효성 체크
    function isValidSearchWord(objText) {
        if(objText.value.trim().toUpperCase() == "AND" || objText.value.trim().toUpperCase() == "OR") {
            alert("검색에 사용할 수 없는 단어 입니다.");
            return false;
        }
        
        if(hasChars(objText, "<>()[];=,!@#$%^&*?")) {
            alert("검색어에 특수문자가 포함되어 있습니다.");
            return false;
        }
        
        return true;
    }

	//문자 앞뒤의 공백제거
    String.prototype.trim = function() {
        return this.replace(/(^\s*)|(\s*$)/g, "");
    }
    
	 //특정 문자가 포함되어 있으면 true
    function hasChars(obj, chars) {
        for(var i = 0; i < obj.value.length; i++) {
           if (chars.indexOf(obj.value.charAt(i)) != -1) {
               return true;
           }
        }
        
        return false;
    }