function isNull(input) {
    if (input == null || input == "") {
        return true;
    }
    return false;
}

function isEmpty(input) {
    if (input == null || input.replace(/ /gi,"") == "") {
        return true;
    }
    return false;
}

function containsChars(input,chars) {
    for (var inx = 0; inx < input.length; inx++) {
       if (chars.indexOf(input.charAt(inx)) != -1)
           return true;
    }
    return false;
}

function containsCharsOnly(input,chars) {
	var inx;
	for (inx = 0; inx < input.length; inx++) {
		if (chars.indexOf(input.charAt(inx)) == -1) {
			return false;
	  }
	}
  return true;
}

function isAlphabet(input) {
    var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
    return containsCharsOnly(input,chars);
}


function isNumber(input) {
    var chars = "0123456789";
    return containsCharsOnly(input,chars);
}

function isAlphaNum(input) {
    var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
    return containsCharsOnly(input,chars);
}

function isNumDash(input) {
    var chars = "-0123456789";
    return containsCharsOnly(input,chars);
}

function isNumComma(input) {
    var chars = ",0123456789";
    return containsCharsOnly(input,chars);
}

function isValidFormat(input,format) {
    if (input.search(format) != -1) {
        return true; //¿Ã¹Ù¸¥ Æ÷¸Ë Çü½Ä
    }
    return false;
}

function isValidEmail(input) {
//    var format = /^(\S+)@(\S+)\.([A-Za-z]+)$/;
    var format = /^((\w|[\-\.])+)@((\w|[\-\.])+)\.([A-Za-z]+)$/;
    return isValidFormat(input,format);
}

function isValidPhone(input) {
    var format = /^(\d+)-(\d+)-(\d+)$/;
    return isValidFormat(input,format);
}

function moveFocus(num,fromform,toform){
	var str = fromform.value.length;
	if(str == num)
		 toform.focus();
}

function newWin(name, w, h){
nwin = "/eng/inc/newWin.asp?name="+name;
w=w
h=h
window.open(nwin,"imgWin","resizable=no,status=no,top=20,left=20,width="+w+",height="+h+"");
}