var nombrenav=navigator.appName+" "+navigator.appVersion;
var infonav=nombrenav.substring(0,12);
	if (((navigator.appName == "Netscape") && ((parseInt (navigator.appVersion) >=5))) ||((navigator.appName == "Microsoft Internet Explorer") && ((parseInt (navigator.appVersion) >=4)) )) {
		if((navigator.userAgent.indexOf("Mac")!=-1) ||(navigator.userAgent.indexOf("Macintosh")!=-1) ) {
			document.write('<link href="css/netscape4.css" rel="stylesheet" type="text/css">');
		}else{
			document.write('<link href="css/logistec.css" rel="stylesheet" type="text/css">');
			document.write('<link href="css/print.css" rel="stylesheet" type="text/css">');
		}
	}else if (((navigator.appName == "Netscape") && ((parseInt (navigator.appVersion) <=4))) ||((navigator.appName == "Microsoft Internet Explorer") && ((parseInt (navigator.appVersion) <=3)) )) {
		document.write('<link href="css/netscape4.css" rel="stylesheet" type="text/css">');
	}

function changeSheets(whichSheet){
  whichSheet=whichSheet-1;
  if(document.styleSheets){
    var c = document.styleSheets.length;
    for(var i=0;i<c;i++){
      if(i!=whichSheet){
        document.styleSheets[i].disabled=true;
      }else{
        document.styleSheets[i].disabled=false;
      }
    }
  }
}
changeSheets(3);


var direx=window.location
function imprimir(id){
var nombrenav=navigator.appName+" "+navigator.appVersion;
var infonav=nombrenav.substring(0,12);
//	if (((navigator.appName == "Netscape") && ((parseInt (navigator.appVersion) >=5))) ||((navigator.appName == "Microsoft Internet Explorer") && ((parseInt (navigator.appVersion) >=4)) )) {
//    	changeSheets(2);
//		window.print();
//		changeSheets(3);
//		if (navigator.appName == "Netscape"){
//			changeSheets(3);
//			window.document.location.reload();
//		}
	//}else if (((navigator.appName == "Netscape") && ((parseInt (navigator.appVersion) <=4))) ||((navigator.appName == "Microsoft Internet Explorer") && ((parseInt (navigator.appVersion) <=3)) )) {
	  ventana=window.open('articulo_imprimir.php?archivo='+id,'','status=yes,scrollbars=yes,width=520,height=400');
      ventana.print();
	  
	//}

}