function trim(inputString) {
// Removes leading and trailing spaces from the passed string. Also removes
// consecutive spaces and replaces it with one space. If something besides
// a string is passed in (null, custom object, etc.) then return the input.
if (typeof inputString != "string") return inputString; 

var retValue = inputString;

var ch = retValue.substring(0, 1);
while (ch == " ") { // Check for spaces at the beginning of the string
	retValue = retValue.substring(1, retValue.length);
	ch = retValue.substring(0, 1);
}
ch = retValue.substring(retValue.length-1, retValue.length);

while (ch == " ") { // Check for spaces at the end of the string
	retValue = retValue.substring(0, retValue.length-1);
	ch = retValue.substring(retValue.length-1, retValue.length);
}

while (retValue.indexOf(" ") != -1) { // Note that there are two spaces in the string - look for multiple spaces within the string
	retValue = retValue.substring(0, retValue.indexOf(" ")) + retValue.substring(retValue.indexOf(" ")+1, retValue.length); // Again, there are two spaces in each of the strings
}

return retValue; // Return the trimmed string back to the user
} // Ends the "trim" function



//---------------------------------------------------------
function verfichero(urlimgen) {

var ancho=500;
var alto=530;
var left=(screen.width - ancho)/2;
var top=(screen.height - alto)/2;
opciones='width='+ancho+',height='+alto+',left='+left+',top='+top+',location=no,toolbar=no,status=no,menubar=no,directories=no,resizable=no,scrollbars=yes,copyhistory=no';
window.open(urlimagen,'ventana',opciones);

}

//---------------------------------------------------------
function abrirventana(url,ancho,alto) {
if (ancho=="") var ancho=550;
if (alto=="") var alto=550;
var left=(screen.width - ancho)/2;
var top=(screen.height - alto)/2;
opciones='width='+ancho+',height='+alto+',left='+left+',top='+top+',location=no,toolbar=no,status=no,menubar=no,directories=no,resizable=no,scrollbars=yes,copyhistory=no';
window.open(url,'newwin',opciones);
}

//---------------------------------------------------------
function ventanalogin(url) {
var ancho=410;
var alto=300; //290
var left=(screen.width - ancho)/2;
var top=(screen.height - alto)/2;
opciones='width='+ancho+',height='+alto+',left='+left+',top='+top+',location=no,toolbar=no,status=no,menubar=no,directories=no,resizable=no,scrollbars=yes,copyhistory=no';
window.open(url,'login',opciones);
}



//----------------------------------------------------------
function cancelarformulario() {
	//if (confirm("?Esta seguro de cancelar la accion?")) {
		history.back();
	//}
}

//----------------------------------------------------------
function cambiarestilo(objeto,estilo) {
	objeto.className = estilo;
}


//----------------------------------------------------------
// Paginador de listado de directorio
function verpagina(pagina) {
	document.Paginador.action="#";
	document.Paginador.Pag_Actual.value=pagina;
	document.Paginador.submit();
}

//---------------------------------------------------------
function estilomenu(objeto) {
	document.all[objeto].style.fontWeight="bold";
}


//---------------------------------------------------------
function ocultartabla(div) {
	document.all[div].style.visibility="hidden";
	document.all[div].style.position="absolute";
}

//---------------------------------------------------------
function mostrartabla(div) {
	document.all[div].style.visibility="visible";
	document.all[div].style.position="relative";
}

//---------------------------------------------------------
function pijama(tablaInicial, estilo1, estilo2, numFilaAplicar) {	
	var tabla = document.all[tablaInicial];

	if (tabla) {
		// Por defecto pintamos un estilo diferente en cada fila
		grupoDeFilas = 2;
		
		for (i=numFilaAplicar; i<=tabla.rows.length; i++){
			var fila = tabla.rows[i-1];
			if((i%grupoDeFilas) == 0){
				fila.className = estilo2;
			}
			else{
				fila.className = estilo1;
			}
		}
	} 
}

//---------------------------------------------------------
//Remplaza todas las ocurrencias de un string por otra que se le pasa
function ReplaceAll(varb, replaceThis, replaceBy)
{	
	newvarbarray=varb.split(replaceThis);
	newvarb=newvarbarray.join(replaceBy);	
	return newvarb;
}