Event.observe(window, 'load', function() {
	link = document.getElementsByTagName("A");
	for(i=0; i<link.length; i++){
		if( (link[i].className).indexOf('blank')!=-1 ){
			link[i].target = "_blank";
		}
	}
});

// function that preload the images
loadImages = function(urlImages) {
	if (document.images) {
		image = new Image();
		for (var i=0; i<urlImages.length; i++) {
			image.src = urlImages[i];
		}
	}
}