function dimensionar() {
	var ancho = 0, alto = 0;
	if (navigator.appName == 'Microsoft Internet Explorer') {
		//IE 6+ in 'standards compliant mode'
		ancho = document.documentElement.clientWidth;
		alto = document.documentElement.clientHeight;
	}else {
		ancho = document.body.clientWidth;
		alto = document.body.clientHeight;
	}

	document.getElementById("divCargando").style.width = ancho;
	document.getElementById("divCargando").style.height = alto;
}

function trasladar() {
	dimensionar();
	var scrOfX = 0, scrOfY = 0;
	if( typeof( window.pageYOffset ) == 'number' ) {
		//Netscape compliant
		scrOfY = window.pageYOffset;
		scrOfX = window.pageXOffset;
	} else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
		//DOM compliant
		scrOfY = document.body.scrollTop;
		scrOfX = document.body.scrollLeft;
	} else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
		//IE6 standards compliant mode
		scrOfY = document.documentElement.scrollTop;
		scrOfX = document.documentElement.scrollLeft;
	}

	document.getElementById("divCargando").style.left = scrOfX;
	document.getElementById("divCargando").style.top = scrOfY;
}
function visible() {
	document.getElementById("divCargando").style.visibility = "visible";
}

function oculto() {
	document.getElementById("divCargando").style.visibility = "hidden";
	window.onscroll = null;
}