function ismaxlength(obj){
	var mlength=obj.getAttribute? parseInt(obj.getAttribute("maxlength")) : ""
	if (obj.getAttribute && obj.value.length>mlength)
	obj.value=obj.value.substring(0,mlength)
}

// JavaScript Document
function moveover(value)
{
	if(value == "bold"){
		change('**Texto en negrita**')
	}
	if(value == "italic"){
		change('\'\'Texto en cursiva\'\'')
	}
	if(value == "underline"){
		change('__Texto subrayado__')
	}
	if(value == "link"){
		change('[paginainterna|Texto del enlace]')
	}
	if(value == "link2"){
		change('[http://www.dominio.es|Texto del enlace]')
	}
	if(value == "linkmail"){
		change('[sudireccion@dominio.es]')
	}		
	if(value == "titulo1"){
		change('! Título grande')
	}
	if(value == "titulo2"){
		change('!! Título mediano')
	}
	if(value == "titulo3"){
		change('!!! Título pequeño')
	}
	if(value == "imagen"){
		change('[imageninterna.jpg]')
	}
	if(value == "imagengrande"){
		change('[IMAGE]IMAGE LOCATION (must be a web address)[/IMAGE]')
	}
	if(value == "caja"){
		change('[IMAGE]IMAGE LOCATION (must be a web address)[/IMAGE]')
	}
	if(value == "linea"){
		change('[IMAGE]IMAGE LOCATION (must be a web address)[/IMAGE]')
	}
	if(value == "tabla"){
		change('[IMAGE]IMAGE LOCATION (must be a web address)[/IMAGE]')
	}			
}

function moveback(value)
{
	//image.src = "";
	if(value == "bold"){
		change(' ')
	}
	if(value == "italic"){
		change(' ')
	}
	if(value == "underline"){
		change(' ')
	}
	if(value == "link"){
		change(' ')
	}
	if(value == "link2"){
		change(' ')
	}
	if(value == "linkmail"){
		change(' ')
	}		
	if(value == "titulo1"){
		change(' ')
	}
	if(value == "titulo2"){
		change(' ')
	}
	if(value == "titulo3"){
		change(' ')
	}
	if(value == "imagen"){
		change(' ')
	}
	if(value == "imagengrande"){
		change(' ')
	}
	if(value == "caja"){
		change(' ')
	}
	if(value == "linea"){
		change(' ')
	}
	if(value == "tabla"){
		change(' ')
	}			
}

function append(symbol){
    //var selectedText = document.selection;
	//if (selectedText.type == 'Text') {
	//	var newRange = selectedText.createRange();
	//	symbol.focus();
	//	symbol = newRange.text;
		document.editor.message.value = symbol;
	//}
}

function clearMessage() {
     document.editor.message.value = "";
}

function confirmSubmit() 
{
var agree=confirm("Are you sure you want to delete?");
if (agree)
	return true ;
else
	return false ;
}

function confirmPublish() 
{
var agree=confirm("Are you sure you want to publish?");
if (agree)
	return true ;
else
	return false ;
}

function denyPublish() 
{
var agree=alert("Sorry, but this service is currently unavailable for this demo");
if (agree)
	return true ;
else
	return false ;
}

function closewindow() 
{
	window.close()
}

function ask()
{
	var link = prompt("Enter hyperlink. This can be either a web address or a local address, i.e. news.php","http://")
	if (link != null && link != "")
	{
		insert(document.editor.message, '[LINK][A]' + link + '[/A]', '[/LINK]', '')
	}
}

function change(html){
  //descriptions.innerHTML=html
}

function color()
{
	option=document.forms[0].dropdown.options[document.forms[0].dropdown.selectedIndex].value
	mystuff_array = option.split("|")
	
	insert(document.editor.message, mystuff_array[0], mystuff_array[1], '')
}

function put()
{
	option=document.forms[0].crap.options[document.forms[0].crap.selectedIndex].value
	mystuff_array = option.split("|")
	
	insert(document.editor.message, mystuff_array[0], mystuff_array[1], '')
	//txt=option
	//document.editor.message.value +=txt
}

function size_font()
{
	option=document.forms[0].stuff.options[document.forms[0].stuff.selectedIndex].value
	mystuff_array = option.split("|")
	
	insert(document.editor.message, mystuff_array[0], mystuff_array[1], '')
}

function store(obj){
   if (obj.createTextRange){
      obj.selection = document.selection.createRange().duplicate();
   }
   return true;
}
function insert(objTxt, beg, end, txt) {
   var str = (objTxt.createTextRange && objTxt.selection) ? objTxt.selection.text : "";
   str = formatString(objTxt, str, beg, end, txt);
   if (str == null) return true;
   if (objTxt.createTextRange && objTxt.selection) {
      var objTxtRange = objTxt.selection;
      objTxtRange.text = (objTxtRange.text.charAt(objTxtRange.text.length - 1) == ' ') ? str + ' ' : str;
      objTxt.selection = null;
   } else {
      objTxt.value += str;
   }
   document.editor.message.focus()
   return true;
}
function formatString(arg, inp, beg, end, txt) {
   var str = inp;
   if (arg.createTextRange && arg.selection) {
      if (str != null) {
         str = (arg.selection.text.charAt(arg.selection.text.length - 1) == ' ') ? str.replace(/\s+$/,"") : str;
         str = beg + str + end;
      } else {
         arg.selection = null;
      }
   } else {
      if (str != null) {
         str = beg + str + end;
      }
   }
   return str;
}

function tablas(columnas,filas) {
	if (columnas <= 0) {
		alert('Debe especificar el número de columas');
		return false;
	}
	if (filas <= 0) {
		alert('Debe especificar el número de filas');
		return false;
	}	
	var caracteres_col = '';
	for(i=1;i<=columnas;i++) {
		caracteres_col += 'columna||';
	}
	// eliminamos los dos últimos carácteres
	caracteres_col = caracteres_col.substr(0,(caracteres_col.length)-2);
	
	var caracteres_fil = '';
	for(i=1;i<=filas;i++) {
		caracteres_fil += '||||'+caracteres_col+'||||\r\n';
	}
	insert(document.editor.message, caracteres_fil, '', '')
}