function favoritos(sitio, nombre){ 
   if ((navigator.appName=="Microsoft Internet Explorer") && (parseInt(navigator.appVersion)>=4)) { 
      var url="http://"+sitio+"/"; 
      var titulo=""+nombre+""; 
      window.external.AddFavorite(url,titulo); 
   } 
   else { 
      if(navigator.appName == "Netscape") 
         alert ("Presione Crtl+D para agregar este sitio en sus Bookmarks"); 
   } 
} 

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];}
}

function flash_oeas(direccion,ancho,alto,alineacion){ 
if (alineacion=="") {alineacion="middle";}
if (alineacion=="d") {alineacion="right";}
if (alineacion=="i") {alineacion="left";}
document.write('<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0" width="'+ancho+'" height="'+alto+'" id="1" align="'+alineacion+'">');
document.write('<param name="allowScriptAccess" value="sameDomain" />');
document.write('<param name="movie" value="'+direccion+'" />');
document.write('<param name="menu" value="false" />');
document.write('<param name="quality" value="high" />');
document.write('<param name="bgcolor" value="#ffffff" />');
document.write('<param name="WMode" value="transparent" />');
document.write('<embed src="'+direccion+'" menu="false" quality="high" bgcolor="#ffffff" width="'+ancho+'" height="'+alto+'" name="1" align="'+alineacion+'" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" wmode="transparent" /></object>');
} 
			
function solo_numeros(evt){	
var nav4 = window.Event ? true : false;
var key = nav4 ? evt.which : evt.keyCode;	
return (key <= 13 || (key >= 48 && key <= 57));
}

function solo_alfanumerico(texto){ 
var tecla = window.event.keyCode;
  if(65<=tecla && tecla<=90 || 97<=tecla && tecla<=122 || 48<=tecla && tecla<=57 || tecla==32){}
  else{ window.event.keyCode=0; }
}

function no_pegar() {
var pressedKey = String.fromCharCode(event.keyCode).toLowerCase();
if (event.ctrlKey && (pressedKey == "c" || pressedKey == "v")) { event.returnValue = false; }
}

function select_redirecion(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function confirma_eliminar(nombre_elemento)
{
var respuesta=confirm('Esta seguro que desea eliminar '+nombre_elemento+'');
if (respuesta) return true ; else return false ;
}

function expandir(divnum) {
	var zone = document.getElementById( 'expandir' + divnum );
	if( zone.style.display == 'none' ) {zone.style.display = 'block';} 
	else {zone.style.display = 'none'; }
	return false;
}