/***************
*  Java Script *
*  08/09/2008  *
****************/

// Startup variables
var imageTag = false;
var theSelection = false;

// Check for Browser & Platform for PC & IE specific bits
// More details from: http://www.mozilla.org/docs/web-developer/sniffer/browser_type.html
var clientPC = navigator.userAgent.toLowerCase(); // Get client info
var clientVer = parseInt(navigator.appVersion); // Get browser version

var is_ie = ((clientPC.indexOf("msie") != -1) && (clientPC.indexOf("opera") == -1));
var is_nav = ((clientPC.indexOf('mozilla')!=-1) && (clientPC.indexOf('spoofer')==-1)
                && (clientPC.indexOf('compatible') == -1) && (clientPC.indexOf('opera')==-1)
                && (clientPC.indexOf('webtv')==-1) && (clientPC.indexOf('hotjava')==-1));
var is_moz = 0;

var is_win = ((clientPC.indexOf("win")!=-1) || (clientPC.indexOf("16bit") != -1));
var is_mac = (clientPC.indexOf("mac")!=-1);

// Helpline messages
b_help = "Negrita: [b]texto[/b]  (alt+b)";
i_help = "Itálica: [i]texto[/i]  (alt+i)";
u_help = "Subrayado: [u]texto[/u]  (alt+u)";
q_help = "Cita: [quote]texto[/quote]  (alt+q)";
c_help = "Código: [code]código[/code]  (alt+c)";
l_help = "Lista: [list]texto[/list] (alt+l)";
o_help = "Lista ordenada: [list=]texto[/list]  (alt+o)";
p_help = "Insertar imagen: [img]http://url_imagen[/img]  (alt+p)";
w_help = "Insertar URL: [url]http://url[/url] o [url=http://url]texto URL[/url]  (alt+w)";
a_help = "Cerrar todos los marcadores de bbCode abiertos";
s_help = "Color: [color=red]texto[/color]  Nota: también puede usarse color=#FF0000";
f_help = "Tamaño: [size=x-small]texto pequeño[/size]";

// Define the bbCode tags
bbcode = new Array();
bbtags = new Array('[b]','[/b]','[i]','[/i]','[u]','[/u]','[quote]','[/quote]','[code]','[/code]','[list]','[/list]','[list=]','[/list]','[img]','[/img]','[url]','[/url]','[justify]','[/justify]','[center]','[/center]');
imageTag = false;

// Shows the help messages in the helpline window
function helpline(help)
{
	document.Form_ForoPost.helpbox.value = eval(help + "_help");
}


// Replacement for arrayname.length property
function getarraysize(thearray)
{
	for (i = 0; i < thearray.length; i++) {
		if ((thearray[i] == "undefined") || (thearray[i] == "") || (thearray[i] == null))
			return i;
		}
	return thearray.length;
}

// Replacement for arrayname.push(value) not implemented in IE until version 5.5
// Appends element to the array
function arraypush(thearray,value)
{
	thearray[ getarraysize(thearray) ] = value;
}

// Replacement for arrayname.pop() not implemented in IE until version 5.5
// Removes and returns the last element of an array
function arraypop(thearray)
{
	thearraysize = getarraysize(thearray);
	retval = thearray[thearraysize - 1];
	delete thearray[thearraysize - 1];
	return retval;
}


function checkForm()
{

	formErrors = false;

	if (document.Form_ForoPost.fCampText.value.length < 1)
        {
		formErrors = "Debe escribir un texto al crear un mensaje.";
	}

        if (document.Form_ForoPost.fCampTema.value.length < 1)
        {
		formErrors = "Falta el asunto.";
	}

	if (formErrors) {
		alert(formErrors);
		return false;
	} else {
		bbstyle(-1);
		//formObj.preview.disabled = true;
		//formObj.submit.disabled = true;
		return true;
	}
}

function emoticon(text)
{
	var txtarea = document.Form_ForoPost.fCampText;
	text = ' ' + text + ' ';
	if (txtarea.createTextRange && txtarea.caretPos) {
		var caretPos = txtarea.caretPos;
		caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == ' ' ? caretPos.text + text + ' ' : caretPos.text + text;
		txtarea.focus();
	} else {
		txtarea.value  += text;
		txtarea.focus();
	}
}

function bbfontstyle(bbopen, bbclose)
{
	var txtarea = document.Form_ForoPost.fCampText;

	if ((clientVer >= 4) && is_ie && is_win) {
		theSelection = document.selection.createRange().text;
		if (!theSelection) {
			txtarea.value += bbopen + bbclose;
			txtarea.focus();
			return;
		}
		document.selection.createRange().text = bbopen + theSelection + bbclose;
		txtarea.focus();
		return;
	}
	else if (txtarea.selectionEnd && (txtarea.selectionEnd - txtarea.selectionStart > 0))
	{
		mozWrap(txtarea, bbopen, bbclose);
		return;
	}
	else
	{
		txtarea.value += bbopen + bbclose;
		txtarea.focus();
	}
	storeCaret(txtarea);
}


function bbstyle(bbnumber)
{
	var txtarea = document.Form_ForoPost.fCampText;

	txtarea.focus();
	donotinsert = false;
	theSelection = false;
	bblast = 0;

	if (bbnumber == -1) { // Close all open tags & default button names
		while (bbcode[0]) 
                {
			butnumber = arraypop(bbcode) - 1;
			txtarea.value += bbtags[butnumber + 1];
			buttext = eval('document.Form_ForoPost.addbbcode' + butnumber + '.value');
			eval('document.Form_ForoPost.addbbcode' + butnumber + '.value ="' + buttext.substr(0,(buttext.length - 1)) + '"');
		}
		imageTag = false; // All tags are closed including image tags :D
		txtarea.focus();
		return;
	}

	if ((clientVer >= 4) && is_ie && is_win)
	{
		theSelection = document.selection.createRange().text; // Get text selection
		if (theSelection)
                {
			// Add tags around selection
			document.selection.createRange().text = bbtags[bbnumber] + theSelection + bbtags[bbnumber+1];
			txtarea.focus();
			theSelection = '';
			return;
		}
	}
	else if (txtarea.selectionEnd && (txtarea.selectionEnd - txtarea.selectionStart > 0))
	{
		mozWrap(txtarea, bbtags[bbnumber], bbtags[bbnumber+1]);
		return;
	}

	// Find last occurance of an open tag the same as the one just clicked
	for (i = 0; i < bbcode.length; i++)
        {
	     if (bbcode[i] == bbnumber+1)
             {
		bblast = i;
		donotinsert = true;
	     }
	}

	if (donotinsert) {		// Close all open tags up to the one just clicked & default button names
		while (bbcode[bblast])
                {
			butnumber = arraypop(bbcode) - 1;
			txtarea.value += bbtags[butnumber + 1];
			buttext = eval('document.Form_ForoPost.addbbcode' + butnumber + '.value');
			eval('document.Form_ForoPost.addbbcode' + butnumber + '.value ="' + buttext.substr(0,(buttext.length - 1)) + '"');
			imageTag = false;
                 }
		txtarea.focus();
		return;
	} else
        { // Open tags

		if (imageTag && (bbnumber != 14)) 
                {		// Close image tag before adding another
			txtarea.value += bbtags[15];
			lastValue = arraypop(bbcode) - 1;	// Remove the close image tag from the list
			document.Form_ForoPost.addbbcode14.value = "Img";	// Return button back to normal state
			imageTag = false;
		}

		// Open tag
		txtarea.value += bbtags[bbnumber];
		if ((bbnumber == 14) && (imageTag == false)) imageTag = 1; // Check to stop additional tags after an unclosed image tag
		arraypush(bbcode,bbnumber+1);
		eval('document.Form_ForoPost.addbbcode'+bbnumber+'.value += "*"');
		txtarea.focus();
		return;
	}
	storeCaret(txtarea);
}

function mozWrap(txtarea, open, close)
{
	var selLength = txtarea.textLength;
	var selStart = txtarea.selectionStart;
	var selEnd = txtarea.selectionEnd;
	if (selEnd == 1 || selEnd == 2)
		selEnd = selLength;

	var s1 = (txtarea.value).substring(0,selStart);
	var s2 = (txtarea.value).substring(selStart, selEnd)
	var s3 = (txtarea.value).substring(selEnd, selLength);
	txtarea.value = s1 + open + s2 + close + s3;
	return;
}

function storeCaret(textEl)
{
   if (textEl.createTextRange) textEl.caretPos = document.selection.createRange().duplicate();
}

function MarcarAllCk(chk)
{
  elem=document.getElementsByTagName('input');
  for(i=0;i<elem.length;i++)
	        elem[i].checked=chk;
}


/************************************************************/

function AbreVentana(url)
{
  var ventana=document.open(url,'_blank',
  'toolbar=no,location=no,directories=no,status=NO,scrollbars=yes, left=0, top=0, width=790,height=590,resizable=yes');
}

 /*----------------------------------------*/

function AbreVentanaMsn(url)
{
  var ventana=document.open(url,'_blank',
  'toolbar=no,location=no,directories=no,status=NO,scrollbars=yes, left=0, top=0, width=520,height=460,resizable=yes');
}
 /*----------------------------------------*/

function ChekFecha(fInFecha,fInAviso)
{
    var bOkFecha = true;

    function finMes(nMes, nAno)
    {
       var nRes = 0;

       switch(nMes)
       {
          case  1: nRes = 31; break;

          case  2: if((nAno % 4)==0) nRes = 29; else nRes = 28;
                   break;

          case  3: nRes = 31; break;
          case  4: nRes = 30; break;
          case  5: nRes = 31; break;
          case  6: nRes = 30; break;
          case  7: nRes = 31; break;
          case  8: nRes = 31; break;
          case  9: nRes = 30; break;
          case 10: nRes = 31; break;
          case 11: nRes = 30; break;
          case 12: nRes = 31; break;
       }

       return nRes;
    }

    function valMes(nMes)
    {
       var bOk = false;

       bOk = ((nMes >= 1) && (nMes <= 12));

       return bOk;
    }

    function fValFecha(sFecha)
    {
      var bOk = false; var bSep = false;
      var aa = 0; var mm = 0; var dd = 0;
      var sAx = ''; var ii = 0;
      var nTam = sFecha.value.length;

      if(nTam>0)
      {
         while((ii < nTam) && !bSep)
         {
            bSep = (sFecha.value.charAt(ii) == '/');
            if(!bSep) sAx = sAx + sFecha.value.charAt(ii);
            ii++;
         }
         dd = parseInt(sAx,10);

         sAx = ''; bSep = false;
         while((ii < nTam) && !bSep)
         {
            bSep = (sFecha.value.charAt(ii) == '/');
            if(!bSep) sAx = sAx + sFecha.value.charAt(ii);
            ii++;
         }
         mm = parseInt(sAx,10);
         aa = parseInt(sFecha.value.substr(ii),10);
         sAA = sFecha.value.substr(ii);

         if(sAA.length==2)
         {
           if(aa<30) aa+=2000; else aa+=1900;
           sAA=String(aa);
         }

         bOk = ((String(aa).length==4) && valMes(mm) && (dd >= 1) && (dd <= finMes(mm, aa)));

         if(dd<10) sDD='0'+String(dd); else sDD=String(dd);
         if(mm<10) sMM='0'+String(mm); else sMM=String(mm);

         if (!bOk)
         {
          //  alert("Fecha inválida ");
         //   sFecha.value = "";
            sFecha.focus();
         } else sFecha.value = sDD+"/"+sMM+"/"+sAA;

      } else bOk = true;  //<-- tam > 0

      return bOk;
    }
  //-----------------------------

  if(!fValFecha(fInFecha))
  {
    bOkFecha = false;
    fInAviso.value = "NO VÁLIDA";
    fInFecha.focus();
  } else fInAviso.value = "";

  return bOkFecha;
}

function setH()
{
   var maxH = Math.max(document.getElementById('crIzq').offsetHeight,document.getElementById('crDer').offsetHeight);
   maxH = Math.max(maxH,document.getElementById('crCentral').offsetHeight)+15;
   document.getElementById('crIzq').style.height=maxH+'px';
   document.getElementById('crDer').style.height=maxH+'px';
   document.getElementById('crCentral').style.height=maxH+'px';
}
window.onload=setH;