// JavaScript Document
//var background="";
var colorOver = "#FFEEAA";
var visible = false;

function rollOver(tr,colorPrev)
{
	background = colorPrev;
	tr.style.backgroundColor = colorOver;	
}

function rollOut(tr,color)
{
	tr.style.backgroundColor = background;		
}
	

function acceptNum(evt) {
	var nav = window.Event ? true : false;
	// NOTA: Backspace = 8->si, Enter = 13->no, '0' = 48, '9' = 57, '.'=46->si
	var key = nav ? evt.which : evt.keyCode;
	return (key == 13 ||  (key >= 48 && key <= 57));
}