// pre-carga de imagenes
	function preloadImg() {
		var doc = document;
		if(doc.images) {
			if(!doc.preLoaded) { doc.preLoaded = new Array(); }
			var aUrlImages = preloadImg.arguments;
			for(var x = 0; x < aUrlImages.length; x++) {
				tmpImg = new Image;
				tmpImg.src = aUrlImages[x];
			}
		}
	}

// cambia las imagenes
	function swapImg(img, name) {
		if(name) {
			prevImg = img.src;
			img.src = name;
		} else {
			img.src = prevImg;
		}
	}
	
// Pop Up
function openPopup(url,w,h,center,scroll) {
	if(w==null) { var w=600; }
	if(h==null) { var h=500; }
	if(center==null) { var center=false; }
	if(scroll==null) { var scroll='no'; }
	var day = new Date();
	var winame = "ampliar";
	
	if(center) {
		var t = (screen.height - h) / 2;
		var l = (screen.width - w) / 2;
	} else {
		var t = 0;
		var l = 0;
}
	
	window.open(url,winame,"top="+t+"px,left="+l+"px,scrollbars="+scroll+",resizable=0,width="+w+"px,height="+h+"px");
}

function closeDiv() {
var divObj = document.getElementById("flotante");
divObj.style.visibility = "hidden";
}

// Scroll
window.onload = function() { 
			sd = new hytScrollingDiv('txtbox');
}