function strtoupper( str ) {    

	return (str+'').toUpperCase(); 

}

function substr( f_string, f_start, f_length ) {

    f_string += '';

    if(f_start < 0) {

        f_start += f_string.length;

    }

    if(f_length == undefined) {

        f_length = f_string.length;

    } else if(f_length < 0){

        f_length += f_string.length;

    } else {

        f_length += f_start;

    }

    if(f_length < f_start) {

        f_length = f_start;

    }

    return f_string.substring(f_start, f_length);

}



function strlen (string) {

    var str = string+'';

    var i = 0, chr = '', lgth = 0;

 

    var getWholeChar = function (str, i) {

        var code = str.charCodeAt(i);

        var next = '', prev = '';

        if (0xD800 <= code && code <= 0xDBFF) { 

            if (str.length <= (i+1))  {

                throw 'High surrogate without following low surrogate';

            }

            next = str.charCodeAt(i+1);

            if (0xDC00 > next || next > 0xDFFF) {

                throw 'High surrogate without following low surrogate';

            }

            return str[i]+str[i+1];

        } else if (0xDC00 <= code && code <= 0xDFFF) {

            if (i === 0) {

                throw 'Low surrogate without preceding high surrogate';

            }

            prev = str.charCodeAt(i-1);

            if (0xD800 > prev || prev > 0xDBFF) { 

                throw 'Low surrogate without preceding high surrogate';

            }

            return false; 

        }

        return str[i];

    };

 

    for (i=0, lgth=0; i < str.length; i++) {

        if ((chr = getWholeChar(str, i)) === false) {

            continue;

        } 

        lgth++;

    }

    return lgth;

}





function nuevoAjax(){

    var xmlhttp=false;

     try { xmlhttp = new ActiveXObject("Msxml2.XMLHTTP"); }

    catch (e) {

         try { xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");    }

        catch (E) { xmlhttp = false; }

      }

    if (!xmlhttp && typeof XMLHttpRequest!='undefined') { xmlhttp = new XMLHttpRequest(); }

    return xmlhttp;

}

function cargarurl(file,capan,postdata) {

    ajax = nuevoAjax();

	var rnd=Math.random();

    accionado = function () {

		var capa = document.getElementById(capan);

		if (ajax.readyState == 1) {

capa.innerHTML = '<center><img src="images/load.gif" /><br /><br /><br /><span style="color: black; font-weight: bold; font-size: 15px;">Cargando...</span></center>';

		}

		else if ((ajax.readyState == 4) && (ajax.status == 200)) {

		var g=ajax.responseText;

		var g=g.split('[JS]');

		if (g.length>0) {

		capa.innerHTML = g[0]; 

		eval(g[1]);

		}

		else { capa.innerHTML = ajax.responseText; }

		}

	}

   ajax.onreadystatechange = accionado;

   ajax.open("POST", file+'?random='+rnd,true);

   ajax.setRequestHeader("Content-type", "application/x-www-form-urlencoded");

   if (!postdata) { postdata=null; }

   ajax.send(postdata); 



}



function layer(archivo,ancho,alto,postdata) {

	scroll(0,0); 

	$('ver2').style.width=ancho+'px';

	$('ver2').style.height=alto+'px';

	an=parseInt($('ver2').style.width);

	al=parseInt($('ver2').style.height);

	x=(document.body.clientWidth-an)/2;

	y=(document.body.clientHeight-al)/2;

	$('ver2').style.left=x+'px';

	$('ver2').style.top=y+'px'; 

	document.documentElement.style.overflow='hidden'; 

	cargarurl(archivo,'ver2',postdata); 

	$('ver').style.display=''; 

	$('ver2').style.display='';	

}

function cerrarlayer() {

	$('ver').style.display='none';

	$('ver2').style.display='none';

	document.documentElement.style.overflow=''; 

}



function slideFolio(col){

	if ($('lastPag').value!=col) {

	var x = ((col-1)*-610)

	var folioChange = new Fx.Tween('folio', {duration:1000});

	folioChange.start('left',x);

	$('trigger'+$('lastPag').value).style.borderColor='white';

	$('lastPag').value=col;

	}

}





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_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_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];}

}



var nav4 = window.Event ? true : false;

function sN(evt){	

var key = nav4 ? evt.which : evt.keyCode;	

return (key <= 13 || (key >= 48 && key <= 57));

}



function resetpassword(correo) {

    if (correo.indexOf('@', 0) == -1 || correo.indexOf('.', 0) == -1) { alert("Direccion de correo invalida"); $('recuperaMail').focus(); }

	else if (confirm('Se va a reestablecer la clave para esta cuenta, desea continuar?')) { 

		$('emailRecupera').value=correo; 

		darReset.submit(); 

	} 

}