function textNullChk(obj, msg)
{
	if(obj.value == "") {
		alert(msg + " ÀÔ·ÂÇϼ¼¿ä .");
		obj.focus();
		return false;
	}
	return true;
}

function rmComma(str)
{
	var rstr = "";
	
	for(i=0; i<str.length; i++) {
		var chr = str.charAt(i);
		if(chr == ',')
			continue;
		rstr += chr;
	}
	return rstr;
}

function comma(str) 
{ 
	var str1 = "" + str;
	var strlen = str1.length; 
	var strreturn = ""; 
	var y = 0; 
	
	for (var x=strlen-1; x>=0; x--) 
	{ 
		var comma = str1.charAt(x) ; 
		if (comma != ",")
		{ 
			if (y%3 == 0 && y > 0)
			{ 
				strreturn = comma + "," + strreturn ;
				y++; 
			} 
			else 
			{ 
				strreturn = comma + strreturn; 
				y++; 
			} 
		} 
	} 
	return strreturn; 
}

function trim(str) 
{
	if(str == "")	return str;
	i = str.length-1;
	while(i > 0) {
		if(str.charAt(i)!=" " && str.charAt(i) != '\n' && str.charAt(i) != '\r') 
		{
			str = str.substring(0, i+1);
			break;
		}
		i--;
	}
	
	i = 0;
	while(i < str.length) {
		if(str.charAt(i) !=" " && str.charAt(i) != '\n' && str.charAt(i) != '\r') 
		{
			str = str.substring(i);
			break;
		}
		i++;
	}	
	return str;
}

function isNumber(str) {	
	if (str.length == 0) return(false);
	for (var i = 0; i < str.length; i++) {
		if( i < 1 ) {
			if (str.charAt(i) < '1' || str.charAt(i) > '9' )
				return(false);
	    }else{
			if (str.charAt(i) < '0' || str.charAt(i) > '9')
				return(false);
		}
	}
	return(true);
}

function CheckEmail(strEmail){
    var regDoNot = /(@.*@)|(\.\.)|(@\.)|(\.@)|(^\.)/; 
    var regMust = /^[a-zA-Z0-9\-\.\_]+\@[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3})$/;
    if ( !regDoNot.test(strEmail) && regMust.test(strEmail) )
        return true;
    else
        return false;
}

function setLastDay(yyform, mmform, ddform) {
	var lastday = getLastDay(
		parseInt(yyform[yyform.selectedIndex].value), parseInt(mmform[mmform.selectedIndex].value));
	for(i = 0; i < lastday; i++) {
		ddform[i] = new Option(i+1, i+1);
	}
	ddform.length = lastday;
}

function getLastDay(yy, mm) {
	var lastDay = 0;
	if(mm == 2) {
		if (yy % 4 == 0) {   
			if (yy % 100 == 0 && yy % 400 != 0) 
				lastDay = 28;
			else
				lastDay = 29;
		} else 
			lastDay = 28;
	}
	else if(mm == 4 || mm == 6 || mm == 9 || mm == 11)
		lastDay = 30;
	else
		lastDay = 31;
	return lastDay;
}

function GetSelectedVal(objSelect){
        var i;
        var selectedval ;
        for(i=0;i<objSelect.options.length;i++){
                if(objSelect.options[i].selected==true){
                        selectedval = objSelect.options[i].value;
                        break;
                }
        }
        return selectedval ;
}

function GetSelectedTxt(objSelect){
        var i;
        var selectedtext;
        for(i=0;objSelect.options != null && i<objSelect.options.length;i++){
                if(objSelect.options[i].selected==true){
                        selectedtext= objSelect.options[i].text;
                        break;
                }
        }
        return selectedtext;
}

	

function n2c(Str){
	
	if (Str.length == 1)
		return "0"+Str
	else
		return Str;
}

function viewswf(objstr) {
	document.write(objstr);
}

function beginTrans() {
	var obj = "";
	obj += "<table width=100% height=100% border=0>";
	obj += "<tr><td align=center>";
	obj += "<table border=0>";
	obj += "<tr><td width=360 height=100>";
	obj += "<object classid='clsid:D27CDB6E-AE6D-11cf-96B8-444553540000' codebase='http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=5,0,0,0' width='100%' height='100%'>";
	obj += "<param name=movie value='/eng/inc/flash/load_mv_eng.swf'>";
	obj += "<param name=quality value=high>";
	obj += "<embed src='/eng/inc/flash/load_mv_eng.swf' quality=high pluginspage='http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash' type='application/x-shockwave-flash' width='100%' height='100%'>";
	obj += "</embed> ";
	obj += "</object>";
	obj += "</td></tr></table>";
	obj += "</td></tr></table>";
	
	var objRegion = document.getElementById("transpopup");
	objRegion.innerHTML = obj;
	objRegion.style.visibility = "visible";
}

function endTrans() {
	var objRegion = document.getElementById("transpopup");
	objRegion.style.visibility = "hidden";
}