function trim(inputString) {
	if (typeof inputString != "string") { return inputString; }
	var retValue = inputString;
	var ch = retValue.substring(0, 1);
	while (ch == " ") {
		retValue = retValue.substring(1, retValue.length);
		ch = retValue.substring(0, 1);
	}
	ch = retValue.substring(retValue.length-1, retValue.length);
	while (ch == " ") {
		retValue = retValue.substring(0, retValue.length-1);
		ch = retValue.substring(retValue.length-1, retValue.length);
	}
	while (retValue.indexOf("  ") != -1) {
		retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length);
	}
	return retValue;
}

function fnjs_IsInBlank(str) {
	var i=0;
	for(i ; i<str.length ; i++) {
		if(str.indexOf(" ", i) > 0) {
			return true;
		}
	}
	return false;
}

function fnjs_IsNumeric(str_num) {
	var len;
	len = str_num.length;
	for(i=0 ; i<len ; i++) {
		ch = str_num.charCodeAt(i);
		if(ch>=48 && ch <=57) continue;
		alert("¼ýÀÚ°¡ ¾Æ´Õ´Ï´Ù.");
		return false;
	}
	return true;
}