function trim(str){
   return str.replace(/^\s*|\s*$/g,"");
}
function validarEmail(valor) {
  if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(valor)){
    return true
  } else {
    return false;
  }
}

function DNI(n){
var d =(n/23)
d = Math.floor(d);
var e=d*23
var r=n-e
if (r==0) {return "T";}
if (r==1) {return "R";}
if (r==2) {return "W";}
if (r==3) {return "A";}
if (r==4) {return "G";}
if (r==5) {return "M";}
if (r==6) {return "Y";}
if (r==7) {return "F";}
if (r==8) {return "P";}
if (r==9) {return "D";}
if (r==10) {return "X";}
if (r==11) {return "B";}
if (r==12) {return "N";}
if (r==13) {return "J";}
if (r==14) {return "Z";}
if (r==15) {return "S";}
if (r==16) {return "Q";}
if (r==17) {return "V";}
if (r==18) {return "H";}
if (r==19) {return "L";}
if (r==20) {return "C";}
if (r==21) {return "K";}
if (r==22) {return "E";}
}
function validarDNI(campo,mensaje,oblig){
	var texto; 
	var letra;
	var letra2;
	texto = campo.value; 
	if (texto.length > 1 ){ 
		letra=texto.substring(texto.length-1,texto.length);
		letra=letra.toUpperCase();
		letra2=DNI(texto.substring(0,texto.length-1));
		if (letra!=letra2){
			return 'DNI Incorrecto'; 
		}else{
			return '';
		}
	}else{
        if (oblig){ 
                campo.focus(); 
                campo.select(); 
                return mensaje; 
        } else{
			return '';
		}
	}
}

function ventanaSecundaria (URL){ 

window.open(URL,"ventana1","width=300, height=300, scrollbars=no, menubar=no, location=no, resizable=no") 

}



function abreventana1(URL){ 

window.open(URL,"ventana1","width=650, height=500, top=50, scrollbars=yes, menubar=no, location=no, resizable=no") 

}



function abreventana2(URL){ 

window.open(URL,"ventana1","width=750, height=500, top=50, scrollbars=yes") 

}



function abreventana3(URL){ 

window.open(URL,"ventana1","width=300, height=250, top=50, scrollbars=no, menubar=no, location=no, resizable=no") 

}





function right(e) {

if (navigator.appName == 'Netscape' && 

(e.which == 3 || e.which == 2))

return false;

else if (navigator.appName == 'Microsoft Internet Explorer' && 

(event.button == 2 || event.button == 3)) {

alert("Lo sentimos, el botón derecho del ratón está inhabilitado");

return false;

}

return true;

}

document.onmousedown=right;

if (document.layers) window.captureEvents(Event.MOUSEDOWN);

window.onmousedown=right;