// top menu div controll
var banner_scroll_interval;     

function div_chg(n){
	for(i=1; i<=4; i++){			
		submenu_num = document.getElementById("submenu_0"+i);
		
		if (i == n)
		{				
			submenu_num.style.display = "block";		
		}else{			
			submenu_num.style.display = "none";		
		}		
	}	
	return;
}

// top menu div hidden
function div_hidden(){
 for(i=1; i<=4; i++){
   submenu_num = document.getElementById("submenu_0"+i);
   submenu_num.style.display = "none";		
 }
 return;
}

// left menu on/off
function menu_control(depth){
	var depthLen = depth.length;	
	if(depthLen <= 2){
	  // 1depth
	  eval("document.getElementById('menu"+depth+"').className='b'");	 
	}
	else{
		// 1depth
		eval("document.getElementById('menu"+depth.substr(0,2)+"').className='b'");
		// 2depth
		eval("document.getElementById('menu"+depth+"').className='on'");	 
	}
}


// search engine
function f_eng_search_submit(){

  var frm = document.schform;

  if(!frm.kwd.value){
    alert("Input the value.");
    frm.kwd.focus();
	return false;
  }
}

// paging
function goPage(page , nxPage){
		document.frm_navi.nxPage.value = nxPage;
		document.frm_navi.submit();
}

// Audio & video
function ativex_movie(src, width, height){
		if (navigator.appName == 'Netscape') {
			document.write("<embed name=ActiveMovie animationatstart='0' autostart='0' showcontrols='1' showstatusbar='0' showtracker='1' showpositioncontrols='1' pluginspage='http://www.microsoft.com/korea/windows/windowsmedia/' src='"+src+"' type='video/x-ms-asf-plugin' height='"+height+"' width='"+width+"'></embed>");
		} else {
			document.write("<object id=\"ActiveMovie\" width=\""+width+"\" height=\""+height+"\" classid=\"CLSID:22d6f312-b0f6-11d0-94ab-0080c74c7e95\"");
			document.write("codebase=\"http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab\"");
			document.write("standby=\"Loading Microsoft?Windows? Media Player components...\" type=\"application/x-oleobject\" style=\"FILTER:gray;\">");
			document.write("<param name=\"FileName\"  value=\""+src+"\">");
			document.write("<param name=\"AutoStart\" value=\"0\">");
			document.write("<param name=\"AnimationAtStart\" value=\"1\">");
			document.write("<param name=\"DisplaySize\" value=\"4\">");
			document.write("<param name=\"EnableContextMenu\" value=\"false\">");
			document.write("<param name=\"EnablePositionControls\" value=\"-1\">");
			document.write("<param name=\"EnableFullScreenControls\" value=\"1\">");
			document.write("<param name=\"Mute\" value=\"0\">");
			document.write("<param name=\"ShowCaptioning\" value=\"0\">");
			document.write("<param name=\"ShowControls\" value=\"1\">");
			document.write("<param name=\"ShowAudioControls\" value=\"-1\">");
			document.write("<param name=\"ShowDisplay\" value=\"0\">");
			document.write("<param name=\"ShowGotoBar\" value=\"0\">");
			document.write("<param name=\"ShowPositionControls\" value=\"-1\">");
			document.write("<param name=\"ShowStatusBar\" value=\"1\">");
			document.write("<param name=\"ShowTracker\" value=\"-1\">");
			document.write("<param name=\"Volume\" value=\"100\">");
			document.write("<param name=\"SendMouseClickEvents\" value=\"-1\">");
			document.write("<param name=\"DisplaySize\" value=\"0\">");
			document.write("</object>");
		}
	}
	
// main page banner 

function popup_startscroll(cnt)
{ // ½ºÅ©·Ñ ½ÃÀÛ
	clearInterval(banner_scroll_interval);  
	banner_scroll_interval = setInterval("rollingBanner("+cnt+");", 50);
}

function rollingBanner(cnt){		 
 var listCnt = cnt;		// banner count
 var movingCnt = 1;	// scrolling height
 var banHeight = 47;	// banner height
 var banSpeed = 50; // scroll speed
 
 var arr_ban = new Array();

 if(listCnt > 3){	// banner is more then 3
	 for(i=0; i<listCnt; i++){
	   arr_ban[i] = document.getElementById("ban"+i);
	 }
	 
	 for(i=0; i<listCnt; i++){
	 	if(i==0){
	 	  if(arr_ban[i].style.top == -parseInt(banHeight)+"px"){	// When the first banner in a hidden area
	 		  arr_ban[i].style.top = (parseInt(arr_ban[listCnt-1].style.top.replace("px","")) + parseInt(banHeight) ) + "px" ;				  
	 	  }else{
	 	  	arr_ban[i].style.top = (parseInt(arr_ban[i].style.top.replace("px","")) - parseInt(movingCnt)) + "px" ;			  	
	 	  }
	   }else{
	 		if(arr_ban[i].style.top == -parseInt(banHeight)+"px"){					
	 		  arr_ban[i].style.top = (parseInt(arr_ban[i-1].style.top.replace("px","")) + parseInt(banHeight)) + "px" ;				  
	 	  }else{
	 		  arr_ban[i].style.top = (parseInt(arr_ban[i].style.top.replace("px","")) - parseInt(movingCnt)) +"px" ;		  				  
	 	  }
	 	}
	 }
	 clearInterval(banner_scroll_interval);
	 banner_scroll_interval=setInterval("rollingBanner("+listCnt+");",banSpeed);
 }
}	

function rollingBanner2(cnt){		 
 var listCnt = cnt;		// banner count
 var movingCnt = 1;	// scrolling height
 var banHeight = 47;	// banner height
 var banSpeed = 50; // scroll speed
 
 var arr_ban = new Array();

 if(listCnt > 3){	// banner is more then 3
	 for(i=0; i<listCnt; i++){
	   arr_ban[i] = document.getElementById("ban"+i);
	 }
	 
	 for(i=0; i<listCnt; i++){
	 	if(i==0){
	 	  if(arr_ban[i].style.top == -parseInt(banHeight)+"px"){	// When the first banner in a hidden area
	 		  arr_ban[i].style.top = (parseInt(arr_ban[listCnt-1].style.top.replace("px","")) + parseInt(banHeight) ) + "px" ;				  
	 	  }else{
	 	  	arr_ban[i].style.top = (parseInt(arr_ban[i].style.top.replace("px","")) - parseInt(movingCnt)) + "px" ;			  	
	 	  }
	   }else{
	 		if(arr_ban[i].style.top == -parseInt(banHeight)+"px"){					
	 		  arr_ban[i].style.top = (parseInt(arr_ban[i-1].style.top.replace("px","")) + parseInt(banHeight)) + "px" ;				  
	 	  }else{
	 		  arr_ban[i].style.top = (parseInt(arr_ban[i].style.top.replace("px","")) - parseInt(movingCnt)) +"px" ;		  				  
	 	  }
	 	}
	 }
	 clearInterval(banner_scroll_interval);
	 banner_scroll_interval=setInterval("rollingBanner("+listCnt+");",banSpeed);
 }
}