function Browser(){
this.name=this.platform="Unknown";
this.majorver=this.version=this.minorver="";
this.mozilla=false;
this.init=_Init;
this.getName=function(){return this.name};
this.getMinorver=function(){return this.minorver};
this.getMajorver=function(){return this.majorver};
this.getVersion=function(){return parseFloat(this.version,10)};
this.getPlatform=function(){return this.platform};
this.isIE=function(){return(this.name=="IE")};
this.isNetscape=function(){return(this.name=="Netscape")};
this.isMozilla=function(){return this.mozilla};
this.isWindows=function(){return _has(this.platform,["Windows","WinNT"])};
this.isWinNT=function(){return _has(this.platform,["WinNT","Windows NT"])};
this.isWin95=function(){return _has(this.platform,["Win95","Windows 95"])};
this.isWin98=function(){return _has(this.platform,["Win98","Windows 98"])};
this.isLinux=function(){return _has(this.platform,"Unix")};
this.isMac=function(){return _has(this.platform,"Mac");};
this.init();
}
function _Init(){
var ua=navigator.userAgent,t="",ts="",i,bv;
bv=ua.slice(0,ua.indexOf("("));
ts=ua.slice(ua.indexOf("(")+1,ua.indexOf(")")).split(";");
for(i=0;i<ts.length;i++){
	t=ts[i].trim();
	if(_has(t,["MSIE","Opera"]))bv=t;
	else if(_has(t,["X11","SunOS","Linux"]))this.platform="Unix";
	else if(_has(t,["Mac","PPC","Win"]))this.platform=t;
}
var idx=bv.indexOf("MSIE"),lo="";
if(idx>=0)bv=bv.slice(idx);
if(bv.slice(0,7)=="Mozilla"){
	lo="";
	this.name="Netscape";
	if(ua.indexOf("Gecko/")!=-1){
		if(/Netscape/.test(ua)){
			var v=/([^\/]+)\s*$/.exec(ua);
			if(v&&v.length>1)lo=v[1]+" ";
		}else{
			this.mozilla=true;
			var v=/rv:([^\)]+)\)/.exec(ua);
			if(v&&v.length>1)lo=v[1]+" ";
		}
	}
	if(lo=="")lo=bv.slice(8);
}else if (bv.slice(0,4)=="MSIE"){
	this.name="IE";lo=bv.slice(5);
}else if (bv.slice(0,27)=="Microsoft Internet Explorer"){
	this.name="IE";lo=bv.slice(28);
}else if (bv.slice(0,5)=="Opera"){
	this.name="Opera";lo=bv.slice(6);
}
lo=lo.trim();
i=lo.indexOf(" ");
if(i>=0)this.version=lo.slice(0,i);
else this.version=lo;
j=this.version.indexOf(".");
if(j>=0){
	this.majorver=this.version.slice(0,j);
	this.minorver=this.version.slice(j+1);
}else this.majorver=this.version;
}
function _has(s,a){
s=String(s);
if(typeof(a)=="string")return s.indexOf(a)!=-1;
else{
	for(var i=0;i<a.length;i++)if(s.indexOf(a[i])!=-1)return true;
	return false;
}
}
function _TRIM(){
var s=0,e=this.length;
while(s<e&&this.charAt(s)==' ')s++;
while(e>0&&this.charAt(e-1)==' ')e--;
return this.slice(s,e);
}
String.prototype.trim=_TRIM;

function isDate(v){return (/^[0-9]+$/.test(v)) || (v == "/");}
function isNumeric(v){return /^[0-9]+$/.test(v);}
function isAlfa(v){return /^[a-zA-ZáéíóúçãõâêôàÁÉÍÓÚÇÃÕÂÊÔÀ]+$/.test(v);}
function isAlfaNumeric(v){return /^[0-9a-zA-Z]+$/.test(v);}
function invertStr(s){
	var t="",i;
	for(i=0;i<s.length;i++)t=s.charAt(i)+t;
	return t;
}
function removeStr(src,arg){
	var v=(typeof arg=="string")?[arg]:arg;
	var r="";
	for(var i=0;i<v.length;i++)r=changeStr(src,v[i],"");
	return r;
}
function repeatStr(src,str,size,orient){
	var r=String(src);
	if(!orient)orient="left";
	while(r.length < size)r=orient.toLowerCase()=="right"?(r+str):(str+r);
	return r;
}
function changeStr(src,from,to)
{
	src=String(src);
	var i,li=0,lFrom= from.length,dst="";
	while((i=src.indexOf(from,li))!=-1){
		dst+=src.substring(li,i)+to;
		li=i+lFrom;
	}
	dst+=src.substring(li);
	return dst;
}
function justNumbersStr(s){return String(s).replace(/\D*/g,"");}
function onlySameNumber(s){return isNumeric(s)&& (new RegExp("^("+s.charAt(0)+")(\\1)*$")).test(s);}

function trim(s){return String(s).replace(/^\s+/,"").replace(/\s+$/,"");}