function getposOffset(overlay, offsettype){
	var totaloffset=(offsettype=="left")? overlay.offsetLeft : overlay.offsetTop;
	var parentEl=overlay.offsetParent;
	
	while (parentEl!=null){
		totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
		parentEl=parentEl.offsetParent;
	}
	return totaloffset;
}

function overlay(curobj, subobjstr, opt_position, idx){
	document.getElementById("idx").value = idx ;

	if (document.getElementById){
		var subobj=document.getElementById(subobjstr);
		subobj.style.display=(subobj.style.display!="block")? "block" : "none";
		var xpos=getposOffset(curobj, "left")+((typeof opt_position!="undefined" && opt_position.indexOf("right")!=-1)?-(subobj.offsetWidth-curobj.offsetWidth) : 0);
		
		var ypos=getposOffset(curobj, "top")+((typeof opt_position!="undefined" && opt_position.indexOf("bottom")!=-1)? curobj.offsetHeight : 0);
		subobj.style.left=xpos+"px";
		subobj.style.top=ypos+"px";
		return false;
	}else{
		return true;
	}
}

function overlayclose(subobj){
	document.getElementById(subobj).style.display="none";
}

function nameChk1(mcode,pcode,icode){
	//alert(mcode+"/"+pcode+"/"+icode);
	var val = "mcode="+mcode+"&pass="+encodeURIComponent(pcode)+"&id="+encodeURIComponent(icode);
	//alert(val);
	sendRequest("/board.chk", val, FromServer_bichk, "POST"); 

}