// Funciones utilitarias generales
function checkCSSClass(obj,c) {
	if (obj && obj.className)
		return new RegExp('\\b'+c+'\\b').test(obj.className)	
	return false;
}

function addCSSClass(obj,c) {
	if (!checkCSSClass(obj,c)) {
		obj.className+=(obj.className)?' '+c:c;
	}
}

function delCSSClass(obj,c) {
	if (obj && obj.className) {
		var rep = (obj.className.match(' '+c))?' '+c:c;
		obj.className = obj.className.replace(rep,'');
	}
}

function replaceCSSClass(obj,c1,c2) {
	delCSSClass(obj,c1);
	addCSSClass(obj,c2);
}

function swapCSSClass(obj,c1,c2) {
	var c2=(c2)?c2:"";
	if (checkCSSClass(obj,c1)) {
		replaceCSSClass(obj,c1,c2);
	} else {
		replaceCSSClass(obj,c2,c1);	
	}
}

function isArray(a) {
    return (typeof a == 'object') && a.constructor == Array;
}

function round(value) {
	return (parseInt(value*100)/100);
}

function openPopupWindowNew(link,params) {
	return window.open((link.href?link.href:link), 'popup',params+', width=750px, height=400px, resizable=yes, toolbars=no, scrollbars=yes,'+params);
}

function is_email(email_str,error_msg,focus_obj) {
	var email_ok=true;
    if ((email_str.length < 6)) {
      email_ok=false;
    } else if ((email_str.indexOf('@') == -1) || (email_str.indexOf('.') == -1)) {
      email_ok=false; 
    } else if ((email_str.indexOf('@') == 0) || (email_str.indexOf('.') == 0)) {
      email_ok=false; 
    } else if (email_str.lastIndexOf("@") != (email_str.indexOf('@')) ) {
      email_ok=false; 
    } else if ( (email_str.indexOf(".") == (email_str.indexOf('@')-1)) || (email_str.indexOf(".") == (email_str.indexOf('@')+1)) ){
      email_ok=false; 
    } else if ((email_str.lastIndexOf(".") == (email_str.length-1)) || (email_str.lastIndexOf(".") == (email_str.length-2)) ) {
      email_ok=false; 
    } else if(email_str.lastIndexOf(".") < email_str.indexOf("@")) {
      email_ok=false; 
    } else if(email_str.indexOf(" ")>-1) {
      email_ok=false; 
    }
	if ((!email_ok)&&(error_msg)) {
		alert(error_msg);
	}
	if ((!email_ok)&&(focus_obj)) {
		focus_obj.focus();
	}
	return (email_ok);
}

function is_empty(valor){
	return ((valor==null)||(valor=="")||(valor.length == 0));
}

function is_numeric(valor){
	var numericExpression = /^[0-9]+$/;
	return (valor.match(numericExpression)!=null);
}

function minlength(valor,min) {
	return (valor.length > min);
}

function maxlength(valor,max) {
	return (valor.length <= max);
}

function is_date(str) {
	var date_regexp = new RegExp("^([0-9]{1,2})[-//.]([0-9]{1,2})[-//.]([0-9]{2,4})$");

	var matches = date_regexp.exec(str);
	if (!matches) return false;

	if (matches[3].length == 3) return false;
	//Fix 2 char Year
	if (matches[3].length == 2) matches[3] = '20'+matches[3];
	
	var composedDate = new Date(matches[3], (matches[2] - 1), matches[1]);
	
	var day_str = String(composedDate.getDate());
	if (day_str.length < 2) day_str = "0" + day_str;

	var month_str = String(composedDate.getMonth()+1);
	if (month_str.length < 2) month_str = "0" + month_str;
	
	var date_str = day_str + '/' + month_str + '/' + composedDate.getFullYear();
	
	return ((composedDate.getMonth() == (matches[2] - 1)) &&
			(composedDate.getDate() == matches[1]) &&
			(composedDate.getFullYear() == matches[3]))?date_str:false;
}

function destroy(obj) {
	obj.destroy && obj.destroy();
	purge(obj);
//	obj.parentNode && obj.parentNode.removeChild(obj);
}

function purge(obj) {
    var a = obj.attributes, i, l, n;
    if (a) {
        l = a.length;
        for (i = 0; i < l; i += 1) {
            n = a[i].name;
            if (typeof obj[n] === 'function') {
                obj[n] = null;
            }
        }
    }
}
/*

String.prototype.asNumber = function() {
	return (this.replace(/[^0-9\-]/g,'')/1);
}

function isIE() {
	return (window.navigator.userAgent.indexOf("MSIE")>0);
}

function is_date(m_strDate){
	if (m_strDate=="") {
		return false;
	}
	var m_arrDate = m_strDate.split("/");
	var m_DAY = m_arrDate[0];
	var m_MONTH = m_arrDate[1];
	var m_YEAR = m_arrDate[2];
	if(!m_DAY || !m_MONTH || !m_YEAR) {
		return false;
	}
	if(m_YEAR.length != 4) {
		return false;
	}
	m_strDate = m_MONTH + "/" + m_DAY + "/" + m_YEAR;
	var testDate=new Date(m_strDate);
	if (testDate.getMonth()+1==m_MONTH){
		return true;
	} else {
		return false;
	}
}

function FileUploader(aplication, reference, request, extraAction, extraReference, referenceObj) {
	var iframe = document.createElement('IFRAME');
	iframe.aplication = aplication;
	iframe.className = 'fileuploader';
	if (aplication) {
		iframe.style.top = offsetTop(aplication)+((heightObj(aplication)-120)/2)+'px';
		iframe.style.top = offsetTop(aplication)+((heightObj(aplication)-120)/2)+'px';
	}
	iframe.referenceObj = referenceObj;
	
	var src = '/admin/fileuploader.php?request='+request+(reference?'&reference='+reference:'')
		+(extraAction?'&extraAction='+extraAction:'')
		+(extraReference?'&extraReference='+extraReference:'');
	
	iframe.src = src;
	
	window.fileuploader = iframe;
	
	iframe.close = function () {
		document.body.removeChild(this);
	}
	
	iframe.uploadOk = function (result) {
		this.aplication.fileUploadOk(result, this.referenceObj);
		this.close();
	}
	
	document.body.appendChild(iframe);
	return iframe;
}

function AltText(aplication, top, left, text) {
	var altText = document.createElement('DIV');
	altText.className = 'alttext';
	altText.style.top = top + 'px';
	altText.style.left = left + 'px';
	altText.innerHTML = text;
	altText.aplication = aplication;
	aplication.altText = altText;
	
	altText.close = function () {
		document.body.removeChild(this);
		this.aplication.altText = false;
	}
	document.body.appendChild(altText);
	return altText;
}

String.prototype.normalizeChars = function() {
	var result = this.toLowerCase();
	result = result.replace(/&aacute;/g, 'a');
	result = result.replace(/&eacute;/g, 'e');
	result = result.replace(/&iacute;/g, 'i');
	result = result.replace(/&oacute;/g, 'o');
	result = result.replace(/&uacute;/g, 'u');
	result = result.replace(/&ccedil;/g, 'c');
	result = result.replace(/á/g, 'a');
	result = result.replace(/é/g, 'e');
	result = result.replace(/í/g, 'i');
	result = result.replace(/ó/g, 'o');
	result = result.replace(/ú/g, 'u');
	result = result.replace(/ç/g, 'c');
	return result;
};

function _blank(url) {
	if (url) {
		window.open(url);
	}
	return false;
}*/