function dlp( sitem, stitle )
{
	var xmlhttp; 

	if( sitem == '' )
	{
		document.getElementById( 'maintitle' ).innerHTML = '';
		document.getElementById( 'mainspot' ).innerHTML = '';
		return;
	}
	else
	{
		document.getElementById( 'maintitle' ).innerHTML = stitle;
		document.getElementById( 'mainspot' ).innerHTML = '<p align="center"><br />Cargando...</p>';
	}

	if( window.XMLHttpRequest )  // code for IE7+, Firefox, Chrome, Opera, Safari
	{
		xmlhttp = new XMLHttpRequest();
	}
	else   // code for IE6, IE5
	{
		xmlhttp = new ActiveXObject( 'Microsoft.XMLHTTP' );
	}

	xmlhttp.onreadystatechange = function()
	{
		if( xmlhttp.readyState == 4 && xmlhttp.status == 200 )
		{
			document.getElementById( 'maintitle' ).innerHTML = stitle;
			document.getElementById( 'mainspot' ).innerHTML = xmlhttp.responseText;
		}
		else if( xmlhttp.readyState == 4 && xmlhttp.status != 200 )
		{
			document.getElementById( 'maintitle' ).innerHTML = '&iexcl;Error!';
			document.getElementById( 'mainspot' ).innerHTML = '<p align="center"><br />&iexcl;Error accediendo al sitio web!</p>';
		}
	}

	xmlhttp.open( 'GET', '/' + sitem + '.html', true );
	xmlhttp.send();
}