$(document).ready(function(){});

var isIE = document.all?true:false;
var isNS = document.layers?true:false;


function onlyDigits(e, decReq) {
	if (decReq == null) decReq = 'noDec';
	var key = (isIE) ? window.event.keyCode : e.which;
	var obj = (isIE) ? event.srcElement : e.target;
	var isNum = (key > 47 && key < 58) ? true:false;
	var dotOK = (key == 46 && decReq == 'decOK' && (obj.value.indexOf(".") < 0));
	if(key < 32)return true;
	return (isNum || dotOK);
}

function isDefined(variable){
	return (typeof(window[variable]) == 'undefined')? false : true;
}

function limitText(limitField, limitNum) {

		if (limitField.value.length > limitNum) {
			limitField.value = limitField.value.substring(0, limitNum);
		} 

}