String.prototype.trim = function(){
	return this.replace(/^\s+|\s+$/g,'');}
// String.isEmpty ()
String.prototype.isEmpty = function(){
	return this.split(" ").join("").length == 0;}
// String.isEmail ()
String.prototype.isEmail = function(){
	var er = /^[a-z0-9._-]+@([a-z0-9]+[a-z0-9_-]*)+(\.[a-z0-9]+)+$/;
	return er.test(this);}
	
	

/*inicio mask*/
function txtBoxFormat(objForm, strField, sMask, evtKeyPress) {
var i, nCount, sValue, fldLen, mskLen,bolMask, sCod, nTecla;

if(document.all) { // Internet Explorer
    nTecla = evtKeyPress.keyCode;
} else if(document.layers) { // Nestcape
    nTecla = evtKeyPress.which;
} else {
    nTecla = evtKeyPress.which;
    if (nTecla == 8) {
        return true;
    }
}

sValue = objForm[strField].value;
// Limpa todos os caracteres de formatação que
// já estiverem no campo.
// toString().replace [transforma em sring e troca elementos por ""]
sValue = sValue.toString().replace( "-", "" );
sValue = sValue.toString().replace( "-", "" );
sValue = sValue.toString().replace( ".", "" );
sValue = sValue.toString().replace( ".", "" );
sValue = sValue.toString().replace( "/", "" );
sValue = sValue.toString().replace( "/", "" );
sValue = sValue.toString().replace( "/", "" );
sValue = sValue.toString().replace( "(", "" );
sValue = sValue.toString().replace( "(", "" );
sValue = sValue.toString().replace( ")", "" );
sValue = sValue.toString().replace( ")", "" );
sValue = sValue.toString().replace( " ", "" );
sValue = sValue.toString().replace( " ", "" );
fldLen = sValue.length;
mskLen = sMask.length;

i = 0;
nCount = 0;
sCod = "";
mskLen = fldLen;

while (i <= mskLen) {
bolMask = ((sMask.charAt(i) == "-") || (sMask.charAt(i) == ":") || (sMask.charAt(i) == ".") || (sMask.charAt(i) == "/"))
bolMask = bolMask || ((sMask.charAt(i) == "(") || (sMask.charAt(i) == ")") || (sMask.charAt(i) == " ") || (sMask.charAt(i) == "."))

//Se for true utiliza elementos especiais aumenta a máscara
if (bolMask) {
    sCod += sMask.charAt(i);
    mskLen++;
//Caso false mostra o sValue(o q foi digitado)
} else {
    sCod += sValue.charAt(nCount);
    nCount++;
}
i++;
}

objForm[strField].value = sCod;
if (nTecla != 8) { // backspace
    if (sMask.charAt(i-1) == "9") { // apenas números...
    return ((nTecla > 47) && (nTecla < 58)); } // números de 0 a 9
else { // qualquer caracter...
    return true;
}
} else {
    return true;
}
}

/*fim mask*/


function buscaHTML(url,parametro,target){
	var myAjax = new Ajax.Updater(target, url, { method: 'post', parameters: parametro });
	return false;
}

function TeclaAspas(e) {
	if (navigator.userAgent.indexOf("MSIE")!=-1)
		var tecla = event.keyCode;
	else if(navigator.userAgent.indexOf("Netscape") || navigator.userAgent.indexOf("Firefox")!=-1)
		var tecla = e.which;

	
	//alert(tecla);
	if ((tecla != 34 && tecla != 39 && tecla != 59) || (tecla == 0)) // se não for " ou '
    	return true;
	else {
    	if (tecla != 8) // backspace
			if (navigator.userAgent.indexOf("MSIE")!=-1)
				event.keyCode = 0;
			else if(navigator.userAgent.indexOf("Netscape") || navigator.userAgent.indexOf("Firefox")!=-1)
				return false;
		else
	    	return true;
	}
}

function validaEmail(frm){
	var frm = document.getElementById(frm);
	
	if (! frm.email.value.isEmail()){
		frm.email.className="campoErrado";
	}else{
		frm.email.className="campoOk";
	}
}