// JavaScript Document

// Example: obj = findObj("image1");
function findObj(theObj, theDoc)
{
  var p, i, foundObj;
  
  if(!theDoc) theDoc = document;
  if( (p = theObj.indexOf("?")) > 0 && parent.frames.length)
  {
    theDoc = parent.frames[theObj.substring(p+1)].document;
    theObj = theObj.substring(0,p);
  }
  if(!(foundObj = theDoc[theObj]) && theDoc.all) foundObj = theDoc.all[theObj];
  for (i=0; !foundObj && i < theDoc.forms.length; i++) 
    foundObj = theDoc.forms[i][theObj];
  for(i=0; !foundObj && theDoc.layers && i < theDoc.layers.length; i++) 
    foundObj = findObj(theObj,theDoc.layers[i].document);
  if(!foundObj && document.getElementById) foundObj = document.getElementById(theObj);
  
  return foundObj;
}

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 clearList(list) {
	var lst = findObj(list);
	while(lst.options.length > 0) {
		lst.options.remove(0);
	}
}

function hideObject(objName) {
	findObj(objName).style.display = 'none';
}

function showObject(objName) {
	findObj(objName).style.display = 'inline';
}

function setText(objName, theText) {				
	findObj(objName).innerText = theText;
}

function setCboValue(objName, theValue) {
	var cbo = findObj(objName);
	
	for (var i=0; i < cbo.options.length; i++) {
		if (cbo.options[i].value == theValue) {			
			cbo.selectedIndex = i;
			return;
		}					
	}
}

function setCboText(objName, theText) {
	var cbo = document.getElementById(objName);
	
	for (var i=0; i < cbo.options.length; i++) {
		if (cbo.options[i].text == theText) {
			cbo.selectedIndex = i;
			return;
		}					
	}
}

function getCboValue(objName) {
	var cbo = findObj(objName);	
	
	if (cbo.options.length == 0)
		return("");
	else
		return(cbo.options[cbo.selectedIndex].value);
}

function getCboText(objName) {
	var cbo = findObj(objName);	
	
	if (cbo.options.length == 0)
		return("");
	else
		return(cbo.options[cbo.selectedIndex].text);
}

function addListItem(listName, value, text) {
	var lst = findObj(listName);

	var myEle = document.createElement("option") ;    
    myEle.setAttribute('value', value);    
    var txt = document.createTextNode(text);
    myEle.appendChild(txt)
    
    lst.appendChild(myEle)
}

function Left(str, n){
	if (n <= 0)
	    return "";
	else if (n > String(str).length)
	    return str;
	else
	    return String(str).substring(0,n);
}

function Right(str, n){
    if (n <= 0)
       return "";
    else if (n > String(str).length)
       return str;
    else {
       var iLen = String(str).length;
       return String(str).substring(iLen, iLen - n);
    }
}

function getCurrentDate() {
	var dt = new Date();
	var y  = dt.getYear();
	var m = dt.getMonth();
	var d = dt.getDate();

	return Right("00" + d, 2) + "/" + Right("00" + m, 2) + "/" + y; 
}

function rand(inferior,superior){
	numPosibilidades = superior - inferior + 1;
	aleat = Math.random() * numPosibilidades;
	aleat = Math.floor(aleat);
	return parseInt(inferior) + aleat;
}