// 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()

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 getForm (form) {
	var frm = bw.ie4?document.all[form]:document.getElementById(form) ;  
	return frm ;
}

// script para cambiar lenguaje
function reloadLanguaje (newlang) {
	frm = getForm ('frmLanguaje') ;  
	url = bw.ie4?document.all['langUrl']:document.getElementById('langUrl') ;  
	lang = bw.ie4?document.all['langOption']:document.getElementById('langOption') ; 
	
	url.value = window.location ;
	lang.value = newlang ;
	
	frm.submit () ;	
}
// window popUP
function showImageGalery (image, propertie, myWidth, myHeight) {
	var url = "images/galery/" + propertie + "/" + image ;
	var features = "scrollbars=no" ;
	if(window.screen){
		var myLeft = (screen.width-myWidth)/2;
		var myTop = (screen.height-myHeight)/2;
		features+=(features!='')?',':'';
		features+=',left='+myLeft+',top='+myTop;
	}
	features += ((features!='')?',':'')+'width='+myWidth+',height='+myHeight
	window.open(url, 'popUP', features);  	
}


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 () ;
	}
}