body {
	margin-top: 0px;
	margin-right: 0px;
	margin-bottom: 0px;
	margin-left: 0px;
	background-image: url(../images/fundosonbra.gif);
	background-repeat: repeat-y;
	background-position: center top;
}


#div_principal
{
	padding:0;
	margin-right: auto;
	margin-left: auto;
	height: 100%;
	width: 1000px;
}