function doBlink() {
	var blink = document.all.tags("BLINK")
	for (var i=0; i<blink.length; i++)
		blink[i].style.visibility = blink[i].style.visibility == "" ? "hidden" : "" 
}

function startBlink() {
	if (document.all)
		setInterval("doBlink()",1000)
}
window.onload = startBlink;


//cambia el borde de las td de las tablas
function cambia_borde(columna) {


columna.style.border="1px solid #ce003d";

columna.onmouseout=function() {
columna.style.border="1px solid #999999";
}

}