function go_login(){
 var url = document.URL;
 url = escape(url);
 window.name = "main";
 window.open("https://mnb.joins.com/login/login_mnb.asp?BackURL="+url,"poplogin", "left=300 top=100 width=420 height=380 scrollbars=no menubar=no");
}


function win_open(url, name, width, height) {
	var attribute = "scrollbars=auto,width="+width+",height="+height
	win = window.open(url , name ,attribute);
}


function goBlog(form){
	bid = form.options[form.selectedIndex].value;
	if (bid == "")
	{	
		return;
	}
	openBlog(bid);

}
function openBlog(bid)
{

	//Æ˾÷â °¡¿îµ¥ ¶ç¿ì±â
	var strLink = "/modelog/index.asp?bid="+bid;
	var popW = 970;
	var popH = 600;
	var left = (screen.width-popW)/2;
	var top = (screen.height-popH)/3;

	window.open(strLink,'frmpoll','left='+left+',top='+top+',width='+popW+',height='+popH+',scrollbars=no,satus=no');
}



function get_rndum(sno, eno)	 {
	try
	{
		var rnum = Math.floor(Math.random() * eno) + sno;
		return rnum;
	}
	catch (e)
	{
		return 0;
	}

	
}

function set_ban_visible(objname, sno, eno) {
	try
	{
		for (var k=sno; k<=eno; k++) {
			var s = document.getElementById(objname+k).src;
			s = s.toLowerCase();
			
			var n;
			
			n = s.lastIndexOf(".jpg");							//				¸Ç³¡¹®ÀÚ°¡ / °¡ ¾Æ´Ñ°Í ã±â??
			if (n < 0) {
				n = s.lastIndexOf(".gif");							//				¸Ç³¡¹®ÀÚ°¡ / °¡ ¾Æ´Ñ°Í ã±â??
			}
			if (n < 0) {
				n = s.lastIndexOf(".bmp");							//				¸Ç³¡¹®ÀÚ°¡ / °¡ ¾Æ´Ñ°Í ã±â??
			}
			
			if (n < 0) {
				eno = k-1;
				break;
			}


		}
		
		var cnum = get_rndum(sno, eno);

		for (var k=sno; k<=eno; k++) {
			if (k==cnum) 	{
				document.getElementById(objname+k).style.display="block";
			}else{
				document.getElementById(objname+k).style.display="none";
			}
		}

	}
	catch (e)
	{
	}
	
}


// 9. ÁÂÃø °ø¹é Á¦°Å ÇÔ¼ö
function Ltrim(strValue){
	while (strValue.length>0){
		if(strValue.charAt(0)==' '){
			strValue=strValue.substring(1,strValue.length);              
		}
		else
			return strValue;	    
	}
	return strValue;
}


// 10. ¿ìÃø °ø¹é Á¦°Å ÇÔ¼ö
function Rtrim(strValue){
	while (strValue.length>0){
		if(strValue.charAt(strValue.length-1)==' '){
			strValue=strValue.substring(0,strValue.length-1);              
		}
		else
			return strValue;	    
	}
	return strValue;
}


// 11. ¾çÂÊ °ø¹é Á¦°Å ÇÔ¼ö
function Trim(strValue){
   strValue = Ltrim(strValue);
   strValue = Rtrim(strValue);
   return strValue;
}

// ReplaceÇÔ¼ö
function replace(str,otxt,rtxt){
	if(otxt==rtxt) return str;
	while(str.indexOf(otxt)>0){
		str = str.replace(otxt,rtxt);
	}
	return str;
}

function EventChange(target){
	if(target == "eventBox1"){
		document.getElementById("eventBox1").style.display = "block" ;
		document.getElementById("eventBox2").style.display = "none" ;
		document.getElementById("eventBox3").style.display = "none" ;
	}else if (target == "eventBox2"){
		document.getElementById("eventBox1").style.display = "none" ;
		document.getElementById("eventBox2").style.display = "block" ;
		document.getElementById("eventBox3").style.display = "none" ;
	}else if (target == "eventBox3"){
		document.getElementById("eventBox1").style.display = "none" ;
		document.getElementById("eventBox2").style.display = "none" ;
		document.getElementById("eventBox3").style.display = "block" ;
	}
}
cntTime = 2;
function TimeChange(){
	if(cntTime == 1){
	document.getElementById("eventBox1").style.display = "block" ;
		document.getElementById("eventBox2").style.display = "none" ;
		document.getElementById("eventBox3").style.display = "none" ;
	}else if (cntTime == 2){
		document.getElementById("eventBox1").style.display = "none" ;
		document.getElementById("eventBox2").style.display = "block" ;
		document.getElementById("eventBox3").style.display = "none" ;
	}else if (cntTime == 3){
		document.getElementById("eventBox1").style.display = "none" ;
		document.getElementById("eventBox2").style.display = "none" ;
		document.getElementById("eventBox3").style.display = "block" ;
	}

	cntTime++ ;

	if (cntTime > 3){cntTime = 1;}

	tempMouse = setTimeout("TimeChange()", 3000);
}