function EvaluaReg( formEval )
{
	var fields = $( formEval ).find( ".mandatory" ).get();
	
	for( var i = 0 ; i < fields.length ; i++ )
	{
		if( $( fields[i] ).val() == "" )
		{
			alert( "El campo " + $( fields[i] ).attr( "title" ) + " se encuentra vacio y es obligario" );
			return false;
		}
	}
	return true;
}

function number_format(num)
{
	var tmpnum = [], cont = 1;
	num = "" + num.replace( /[^\d\.]/gi , '' );

	for(var i = (num.length -1 ); i >= 0 ; i--)
	{
		tmpnum[tmpnum.length] = num.charAt(i);
		cont++;
		if(cont == 4 && i != 0)
		{
			cont = 1;
			tmpnum[tmpnum.length] = ",";
		}
	}//end for
	tmpnum.reverse();
	return tmpnum.join("");
}


function objetoAjax(){
	var xmlhttp=false;
	try {
		xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
	} catch (e) {
		try {
		   xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
		} catch (E) {
			xmlhttp = false;
  		}
	}

	if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
		xmlhttp = new XMLHttpRequest();
	}
	return xmlhttp;
}