var NS4 = (document.layers)? true:false;
var IE4 = (document.all)? true:false;
var TimerID = new Array();

var ie = document.all ? 1 : 0
var ns = document.layers ? 1 : 0
var ns6 = document.getElementById && !document.all; 



//Example: MM_preloadImages('file.gif', 'http://www.x.com/y.gif');	
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_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;
}

// Example: obj = MM_findObj("image1");
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 winpop=0;
function DoModal(pag,wi,he) {
	var left = (screen.availWidth - wi) / 2; 
	var top = (screen.availHeight - he) / 2; 

	if (left<=0) {
		left = 200;
	}
	if (top<=0) {
		top = 150;
	}
	
	if(winpop) {
	    if(!winpop.closed) winpop.close();
  	}
  
	winpop = window.open(pag,'winpop','toolbar=no,scrollbars=no,location=no,directories=no,status=no,menubar=no,scrollbar=no,resizable=no,copyhistory=yes,width='+wi+',height='+he+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
	if (!winpop.opener)
		winpop.opener = self;
	self.name = "opener";
}
		

// Accepts a variable number of arguments, in triplets as follows:
// arg 1: simple name of a layer object, such as "Layer1"
// arg 2: ignored (for backward compatibility)
// arg 3: 'hide' or 'show'
// repeat...
// Example: showHideLayers(Layer1,'','show',Layer2,'','hide');
function showHideLayers()
{ 
  var i, visStr, obj, args = showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3)
  {
    if ((obj = findObj(args[i])) != null)
    {
      visStr = args[i+2];
      if (obj.style)
      {
        obj = obj.style;
        if(visStr == 'show') visStr = 'visible';
        else if(visStr == 'hide') visStr = 'hidden';
      }
      obj.visibility = visStr;
    }
  }
}


function MM_validateForm() { //v4.0
	var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  	var primer;
  
	for (i=0; i<(args.length-2); i+=3) { 
  		test=args[i+2]; 
		val=findObj(args[i]);
		if (val) { 
			nm=val.name; 
			if ((val=val.value)!="") {
      			if (test.indexOf('isEmail')!=-1) { 
	  				p=val.indexOf('@');
        			if (p<1 || p==(val.length-1)) errors+='- '+nm+' must contain an e-mail address.\n';
      			} else if (test!='R') {
        			if (isNaN(val)) errors+='- '+nm+' must contain a number.\n';
        			if (test.indexOf('inRange') != -1) { 
						p=test.indexOf(':');
          				min=test.substring(8,p); max=test.substring(p+1);
          				if (val<min || max<val) errors+='- '+nm+' must contain a number between '+min+' and '+max+'.\n';
    				} 
				} 
			} else if (test.charAt(0) == 'R') errors += 'El campo de texto ' + args[i] + ' no puede dejarse vacío.\n'; 
		}
		val=findObj(args[i]);
		if (val&&errors&&!primer) {
			primer = val;
		}
  	} 
  	if (errors) {
		alert('Atención:\n'+errors);
		primer.focus();
	}
  	document.MM_returnValue = (errors == '');
}