// clase para detección de navegador
function lib_bwcheck(){ //Browsercheck (needed)
        this.ver=navigator.appVersion; this.agent=navigator.userAgent
        this.dom=document.getElementById?1:0
        this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom)?1:0;
        this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom)?1:0;
        this.ie4=(document.all && !this.dom)?1:0;
        this.ie=this.ie4||this.ie5||this.ie6
        this.mac=this.agent.indexOf("Mac")>-1
        this.opera5=this.agent.indexOf("Opera 5")>-1
        this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0;
        this.ns4=(document.layers && !this.dom)?1:0;
        this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5 || this.dom)
        return this
}
var bw=new lib_bwcheck()


// popup windows
W_handle = new Object;
W_ID = 0;

function popup (html) {
	var width = 640 ;
	var height = 480 ;
	var features = 'width=' + width + ',height=' + height ;
	
	if(window.screen){
		var myLeft = (screen.width - width)/2;
		var myTop = (screen.height - height)/2;
		features += (features!='')?',':'';
		features += ',left='+myLeft+',top='+myTop;
	}
	W_handle = window.open(html, "winhtml", ",,,,,scrollbars,," + features);
	if(parseInt(navigator.appVersion) >= 4){
		W_handle.window.focus () ;
	}
}

function _blank (html) {
	window.open(html) ;
}

// change languaje
function changeLanguaje (lang) {	
	var frm = bw.ie4?document.all['formLanguaje']:document.getElementById('formLanguaje') ;
	frm.Lang.value = lang ;
	frm.Url.value = window.location ;
	frm.submit () ;	
}

function IsNumber(varNumero)
{
	checkOK = "0123456789.,";
	for (i=0; i < varNumero.length; i++)
	{
		str = "" + varNumero.charAt(i);
		if (checkOK.indexOf(str) < 0 )
			return false;
	}
	var num = parseInt (varNumero) ;
	if(num < 0 && num != -1) 
		return false ;
	return true;
}


function isEmpty(inputVal) {
   inputStr = inputVal.length
   var contsps = 0    // contador de espacios en blanco
   for (var i = 0; i < inputStr ; i++) {
	  var oneChar = inputVal.charAt(i)
	  if (oneChar == " ") {
	    contsps = contsps + 1
	 }
}
if (contsps == inputStr) {
	return true
 }else {
        return false }
}

function M2ToSqFt() {
	var sqm =  bw.ie4?document.all['m2']:document.getElementById('m2') ; 
	var rst =  bw.ie4?document.all['sqf_r']:document.getElementById('sqf_r') ; 	
	
	if (IsNumber(sqm.value) && !isEmpty(sqm.value)) {
		var moo = sqm.value * 10.764 ;
		var deg = Math.round (moo * 100) / 100 ;	
		rst.value = deg ;
	}else {
		alert ('Please check M2 input value') ;
		sqm.focus () ;
	}
}

function HaToAcres() {
	var hec =  bw.ie4?document.all['ha']:document.getElementById('ha') ; 
	var rst =  bw.ie4?document.all['acres_r']:document.getElementById('acres_r') ; 	
	
	if (IsNumber(hec.value) && !isEmpty(hec.value)) {	
		var moo = hec.value * 2.47 ;
		var deg = Math.round (moo * 100) / 100 ;
		rst.value = deg ;
	}else {
		alert ('Please check HA input value') ;
		hec.focus () ;
	}
}

// chekContactUsForm 
// Verificar e-mail
function emailCheck (emailStr) {
	var emailPat=/^(.+)@(.+)$/
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	var validChars="\[^\\s" + specialChars + "\]"
	var quotedUser="(\"[^\"]*\")"
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	var atom=validChars + '+'
	var word="(" + atom + "|" + quotedUser + ")"
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
	var matchArray=emailStr.match(emailPat)
	
	if (matchArray==null) {
		alert("E-Mail address not valid")
		return false
	}
	var user=matchArray[1]
	var domain=matchArray[2]
	
	if (user.match(userPat)==null) {
		alert("E-Mail address not valid")
	    return false
	}
	
	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null) {
		  for (var i=1;i<=4;i++) {
		    if (IPArray[i]>255) {
				alert("E-Mail address not valid")
			return false
		    }
	    }
	    return true
}

var domainArray=domain.match(domainPat)
if (domainArray==null) {
		alert("E-Mail address not valid")
    return false
}

var atomPat=new RegExp(atom,"g")
var domArr=domain.match(atomPat)
var len=domArr.length
if (domArr[domArr.length-1].length<2 || 
    domArr[domArr.length-1].length>3) {
	alert("E-Mail address not valid")
   return false
}

if (len<2) {
   var errStr="This address is missing a hostname!"
   alert("E-Mail address not valid")
   return false
}

return true;
}

function chekContactUsForm () {
	var frm =  bw.ie4?document.all['formContactUs']:document.getElementById('formContactUs') ; 
	
	if (isEmpty (frm.fullname.value)) {
		alert ("Please fill input for your Name") ;
		frm.fullname.focus () ;		
		return false ;
	}else if (!emailCheck (frm.email.value)) {
		frm.email.select () ;
		frm.email.focus () ;
		return false ;
	}else if (isEmpty (frm.comments.value)) {
		alert ("Please fill input for your Comments") ;
		frm.comments.focus () ;		
		return false ;
	}
	return true ;
}

// From alcasa
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}