var Bold  = 0;
var Italic = 0;
var Underline = 0;

browserType=navigator.userAgent;
ie4=1;
if (browserType.indexOf("MSIE")==-1) ie4=0;

function pulsarTecla(E,message) {
  if (ie4) {var TeclaIE=event.keyCode; var teclaReal = String.fromCharCode(TeclaIE)
           if(TeclaIE =='13' ) message.value+='<BR>';
		   message.focus();}
  else {var TeclaN=e.which; var teclaReal = String.fromCharCode(TeclaN)
             if(TeclaN =='13' ) message.value+='<BR>';
		   message.focus();}
}

function BBCbold(message,i) {

	if (Bold == 0) {
		ToAdd = "<B>";
		i.src = "css/bold1.gif";
		Bold = 1;
	} else {
		ToAdd = "</B>";
		i.src = "css/bold.gif";
		Bold = 0;
	}
	message.value += ToAdd;
	message.focus();
}

function BBCitalic(message,i) {

	if (Italic == 0) {
		ToAdd = "<I>";
		i.src = "css/italic1.gif";
		Italic = 1;
	} else {
		ToAdd = "</I>";
		i.src = "css/italic.gif";
		Italic = 0;
	}
	//PostWritemessage(message,ToAdd);
	message.value += ToAdd;
	message.focus();
}

function BBCunder(message,i) {

	if (Underline == 0) {
		ToAdd = "<U>";
		i.src = "css/under1.gif";
		Underline = 1;
	} else {
		ToAdd = "</U>";
		i.src = "css/under.gif";
		Underline = 0;
	}
	message.value += ToAdd;
	message.focus();
}

function OpenPreview()
{
	if (document.form.message.value == "") {
		alert('No hay nada que previsualizar!');
		return false;
	}
	else {
		msgTxt = document.form.message.value;
		ToAdd="preview.php?message=" + msgTxt;
		popupWin = window.open(ToAdd, 'preview_page', 'scrollbars=yes,width=750,height=450,top=100,left=100');
		return true;
	}
}