function ch_loginform(it){
	if((it.id.value=="")||(it.id.value==" ")||(it.id.value=="  ")){
		alert("아이디를 입력하셔야 합니다.");
		it.id.value=""
		it.id.focus();
		return false;
	}

	if((it.pwd.value=="")||(it.pwd.value==" ")||(it.pwd.value=="  ")){
		alert("비밀번호를 입력하셔야 합니다.");
		it.pwd.value=""
		it.pwd.focus();
		return false;
	}
	return true;
}

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);

function MM_findObj(n, d) { //v4.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function MM_showHideLayers() { //v3.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; }
    obj.visibility=v; }
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function searchs(){
	if ((document.forms.search.value=="")||(document.forms.search.value==" ")||(document.forms.search.value=="  ")){
		alert("검색어를 입력하십시요")
		document.forms.search.value="";
		document.forms.search.focus();
	return;
	}
	if (document.forms.search.value.length<2){
		alert("검색어는 2자리 이상 입력하셔야 합니다.")
		document.forms.search.value="";
		document.forms.search.focus();
	return;
	}
	document.forms.submit()
}
function login_popup(){
	window.open("../nonmun/springer_login.php", 'springer', "width=400, height=250, left=10, top=50, scrollbars=0, status=0");
}