function isEmpty(elem, helperMsg){
	if(elem.value.length == 0){
		alert(helperMsg);
		elem.focus(); // set the focus to this input
		return true;
	}
	return false;
}

 function tShowTable(sty){
	if(sty == "bnotice1") {
		bnotice1.style.display='block';
	}
	else if(sty == "bnotice2") {
		bnotice2.style.display='block';
	}
	else if(sty == "bnotice3") {
		bnotice3.style.display='block';
	}
 }
 // Å×ÀÌºí ¼û±è
 function tHideTable(){
	bnotice1.style.display='none';
	bnotice2.style.display='none';
	bnotice3.style.display='none';
 }

 function ShowTable(sty){
	if(sty == "notice1") {
		notice1.style.display='block';
		center3_right.innerHTML = "<img src=\"./img_eng/btn/more_bt.gif\" onclick=\"document.location.href='sellers/offerList.jsp?offerType=S&mode=new'\" style=\"cursor:hand\">";
	}
	else if(sty == "notice2") {
		notice2.style.display='block';
		center3_right.innerHTML = "<img src=\"./img_eng/btn/more_bt.gif\" onclick=\"document.location.href='sellers/offerList.jsp?offerType=B&mode=new'\" style=\"cursor:hand\">";
	}
	else if(sty == "notice3") {
		notice3.style.display='block';
		center3_right.innerHTML = "<img src=\"./img_eng/btn/more_bt.gif\" onclick=\"document.location.href='buyer/company/companyList.jsp?mode=new'\" style=\"cursor:hand\">";
	}
 }
 // Å×ÀÌºí ¼û±è
 function HideTable(){
	notice1.style.display='none';
	notice2.style.display='none';
	notice3.style.display='none';
 }




 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_findObj(n, d) { //v4.01
  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 && d.getElementById) x=d.getElementById(n); return x;
}

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 MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function clickshow(num){
	if(num == "1"){
		menu1=document.getElementById("block1").style;
		menu2=document.getElementById("block2").style;
//		menu3=document.getElementById("block3").style;
		if (menu1.display=="block"){
			menu1.display="none";
			menu2.display="none";
//			menu3.display="none";
			document.getElementById("left1").style.height="210px";
		} else {
			menu1.display="block";
			menu2.display="none";
//			menu3.display="none";
			document.getElementById("left1").style.height="280px";
		}
	}else if (num == "2"){

		menu1=document.getElementById("block1").style;
		menu2=document.getElementById("block2").style;
//		menu3=document.getElementById("block3").style;
		if (menu2.display=="block"){
			menu1.display="none";
			menu2.display="none";
//			menu3.display="none";
			document.getElementById("left1").style.height="210px";
		} else {
			menu1.display="none";
			menu2.display="block";
//			menu3.display="none";
			document.getElementById("left1").style.height="260px";
		}
	}else if (num == "3"){

		menu1=document.getElementById("block1").style;
		menu2=document.getElementById("block2").style;
		menu3=document.getElementById("block3").style;
		if (menu3.display=="block"){
			menu1.display="none";
			menu2.display="none";
			menu3.display="none";
			document.getElementById("left1").style.height="210px";
		} else {
			menu1.display="none";
			menu2.display="none";
			menu3.display="block";
			document.getElementById("left1").style.height="260px";
		}
	}
}
function clickshow1(num){
		menu1=document.getElementById("block3").style;
		if (menu1.display=="block"){
	 		menu1.display="none";
			document.getElementById("left1").style.height="300px";
		} else {
			menu1.display="block";
			document.getElementById("left1").style.height="370px";
		}
}