function LTrim( value ) {
	
	var re = /\s*((\S+\s*)*)/;
	return value.replace(re, "$1");
	
}

function RTrim( value ) {
	
	var re = /((\s*\S+)*)\s*/;
	return value.replace(re, "$1");
	
}

function trim( value ) {
	
	return LTrim(RTrim(value));
	
}

function bNumeric(myValue) {
	var myS = myValue.replace(' ', '');
	var bRes = true;
	var sNum = "0123456789";
	for (i=0;i<myS.length;i++) {
		if (sNum.indexOf(myS.substr(i,1))<0) {
			bRes = false;
		}
	}
	return bRes;
}

function alfaNumeric(myValue) {
	var myS = myValue.replace(' ', '');
	var bRes = true;
	var sNum = "0123456789qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM_-";
	for (i=0;i<myS.length;i++) {
		if (sNum.indexOf(myS.substr(i,1))<0) {
			bRes = false;
		}
	}
	return bRes;
}


var isPc = (navigator.userAgent.indexOf("Windows") != -1); 
var isMac = (navigator.userAgent.indexOf("Mac") != -1); 
var isNS = (navigator.appName == "Netscape"); 
var isNSMac = ((navigator.appName == "Netscape") && (navigator.userAgent.indexOf("Mac") != -1)); 
var isNSPc = ((navigator.appName == "Netscape") && (navigator.userAgent.indexOf("Windows") != -1)); 
var isNS4 = ((navigator.appName == "Netscape") && (navigator.userAgent.indexOf("Gecko") == -1)); 
var isNS4Mac = ((navigator.appName == "Netscape") && (navigator.userAgent.indexOf("Mac") != -1) && (navigator.userAgent.indexOf("Gecko") == -1)); 
var isNS4Pc = ((navigator.appName == "Netscape") && (navigator.userAgent.indexOf("Win") != -1) && (navigator.userAgent.indexOf("Gecko") == -1)); 
var isNS6 = ((navigator.appName == "Netscape") && (navigator.userAgent.indexOf("Gecko") != -1)); 
var isNS6Mac = ((navigator.appName == "Netscape") && (navigator.userAgent.indexOf("Mac") != -1) && (navigator.userAgent.indexOf("Gecko") != -1)); 
var isNS6Pc = ((navigator.appName == "Netscape") && (navigator.userAgent.indexOf("Windows") != -1) && (navigator.userAgent.indexOf("Gecko") != -1)); 
var isIE = ((navigator.userAgent.indexOf("MSIE") != -1) && (navigator.userAgent.indexOf("Opera") == -1)); 
var isIEMac = ((navigator.userAgent.indexOf("MSIE") != -1) && (navigator.userAgent.indexOf("Mac") != -1) && (navigator.userAgent.indexOf("Opera") == -1)); 
var isIEPc = ((navigator.userAgent.indexOf("MSIE") != -1) && (navigator.userAgent.indexOf("Windows") != -1) && (navigator.userAgent.indexOf("Opera") == -1)); 
var isIE5 = ((navigator.userAgent.indexOf("MSIE 5.") != -1) && (navigator.userAgent.indexOf("Opera") == -1)); 
var isIE5Mac = ((navigator.userAgent.indexOf("MSIE 5.") != -1) && (navigator.userAgent.indexOf("Mac") != -1) && (navigator.userAgent.indexOf("Opera") == -1)); 
var isIE5Pc = ((navigator.userAgent.indexOf("MSIE 5.0") != -1) && (navigator.userAgent.indexOf("Windows") != -1) && (navigator.userAgent.indexOf("Opera") == -1)); 
var isIE55Pc = ((navigator.userAgent.indexOf("MSIE 5.5") != -1) && (navigator.userAgent.indexOf("Windows") != -1) && (navigator.userAgent.indexOf("Opera") == -1)); 
var isIE6 = ((navigator.userAgent.indexOf("MSIE 6.") != -1) && (navigator.userAgent.indexOf("Opera") == -1)); 
var isIE7 = ((navigator.userAgent.indexOf("MSIE 7.") != -1) && (navigator.userAgent.indexOf("Opera") == -1)); 
var isIE8 = ((navigator.userAgent.indexOf("MSIE 8.") != -1) && (navigator.userAgent.indexOf("Opera") == -1)); 
var isIE6Mac = ((navigator.userAgent.indexOf("MSIE 6.") != -1) && (navigator.userAgent.indexOf("Mac") != -1) && (navigator.userAgent.indexOf("Opera") == -1)); 
var isIE6Pc = ((navigator.userAgent.indexOf("MSIE 6.") != -1) && (navigator.userAgent.indexOf("Windows") != -1) && (navigator.userAgent.indexOf("Opera") == -1)); 
var isIE6Pc2K = ((navigator.userAgent.indexOf("MSIE 6.") != -1) && (navigator.userAgent.indexOf("Windows NT 5.0") != -1) && (navigator.userAgent.indexOf("Opera") == -1)); 
var isIE6PcXP = ((navigator.userAgent.indexOf("MSIE 6.") != -1) && (navigator.userAgent.indexOf("Windows NT 5.1") != -1) && (navigator.userAgent.indexOf("Opera") == -1)); 
var isOpera = (navigator.userAgent.indexOf("Opera") != -1); 
var isOpera5 = (navigator.userAgent.indexOf("Opera 5.") != -1); 
var isOpera5Mac = ((navigator.userAgent.indexOf("Opera 5.") != -1) && (navigator.userAgent.indexOf("Mac") != -1)); 
var isOpera5Pc = ((navigator.userAgent.indexOf("Opera 5.") != -1) && (navigator.userAgent.indexOf("Windows") != -1)); 
var isOpera6Pc = ((navigator.userAgent.indexOf("Opera 6.") != -1) && (navigator.userAgent.indexOf("Windows") != -1));