function MM_swapImgRestore(){
  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(){
  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){
  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 && document.getElementById) x=document.getElementById(n); return x;
}

function MM_swapImage(){
  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 MM_showHideLayers() {
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; }
    obj.visibility=v; }
}

function getLayerName(strLayerName) {
 var objLayerName;
 if (isDOM)
  objLayerName = document.getElementById(strLayerName).style;
 else if (isIE)
  objLayerName = document.all[strLayerName].style;
 else 
  objLayerName = document.layers[strLayerName];
 return objLayerName;
}

function getObjectName(strObjectName) {
 var objObjectName;
 if (isDOM)
  objObjectName = document.getElementById(strObjectName);
 else if (isIE)
  objObjectName = document.all[strObjectName];
 else{
  if (document[strObjectName]) 
   objObjectName = document[strObjectName];
  else{ 
   for (i = 0; i < document.layers.length; i++){
    if (document.layers[i].document[strObjectName]){
     objObjectName = document.layers[i].document[strObjectName];
     break;
    }
   }
  }
 }
 return objObjectName;
}

function setLayerPosition(objLayerName, strNamePositioner, intTop, intLeft) {
 var objNamePositioner;
 intTop = parseInt(intTop);
 intLeft = parseInt(intLeft);
 if (strNamePositioner){
  objLayerName.top = parseInt(getAbsY(getObjectName(strNamePositioner))) + intTop;
  objLayerName.left = parseInt(getAbsX(getObjectName(strNamePositioner))) + intLeft;
 }else{
  objLayerName.top = intTop;
  objLayerName.left = intLeft;
 }
}

function getAbsX(objElement){
 if (!(isDOM) && !(isIE)){
  var strNombreElemento = objElement.name;
  if (!document[strNombreElemento]){
   for (i = 0; i < document.layers.length; i++){
    if (document.layers[i].document[strNombreElemento]){
     objElement = document.layers[i].document[strNombreElemento];
     objLayer = document.layers[i];
     break;
    }
   }
   return (objLayer.x + objElement.x);
  }else
   return ((objElement.x) || (parseInt(objElement.x) == 0)) ? objElement.x : getAbsPos(objElement, "Left");
 }else
  return ((objElement.x) || (parseInt(objElement.x) == 0)) ? objElement.x : getAbsPos(objElement, "Left");
}

function getAbsY(objElement){
 if (!(isDOM) && !(isIE)){
  var strNombreElemento = objElement.name;
  if (!document[strNombreElemento]){
   for (i = 0; i < document.layers.length; i++){
    if (document.layers[i].document[strNombreElemento]){
     objElement = document.layers[i].document[strNombreElemento];
     objLayer = document.layers[i];
     break;
    }
   }
   return (objLayer.y + objElement.y);
  }else
   return ((objElement.y) || (parseInt(objElement.y) == 0)) ? objElement.y : getAbsPos(objElement,"Top");
 }else
  return ((objElement.y) || (parseInt(objElement.y) == 0)) ? objElement.y : getAbsPos(objElement,"Top");
}

function getAbsPos(objElement,which) {
 iPos = 0;
 while (objElement != null) {
  iPos += objElement["offset" + which];
  objElement = objElement.offsetParent;
 }
 return iPos;
}

function setClippingArea(objLayerScan, intTop, intRight, intBottom, intLeft){

 if (document.layers){
  intTop = parseInt(intTop);
  intLeft = parseInt(intLeft);
  intBottom = parseInt(intBottom);
  intRight = parseInt(intRight);
  objLayerScan.clip.top = intTop;
  objLayerScan.clip.bottom = intBottom;
  objLayerScan.clip.left = intRight;
  objLayerScan.clip.right = intLeft;
 }else
  objLayerScan.clip = 'rect(' + intTop + ' ' + intLeft + ' ' + intBottom + ' ' + intRight + ')';
}

function centrarLayers(){
 var strArgs = centrarLayers.arguments;
 for (i = 0; i < (strArgs.length) - 2; i += 3){
  setLayerPosition(getLayerName(strArgs[i]), 'imgReferencia', strArgs[i+1], strArgs[i+2]);
  MM_showHideLayers(strArgs[i], '', 'show');
 }
}

function setStatus(strText){
 window.status = (strText) ? strText : "";
 return true;
}

function viewFotoGrande(strFoto, intAnchoFotoGrande, intAltoFotoGrande){
 openPopup('popup_foto.php?strFoto=' + strFoto, intAnchoFotoGrande, intAltoFotoGrande, false, false, 'FotoNoticia', true);
}

function checkEmail(strEmail){
 var strRegExp = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9])+$/;
 return strRegExp.test(strEmail);
}