$(document).ready(function(){horizon=getHorizon();if(horizon!=null){if(horizon.length==1){horizon="0"+horizon;}
$("#forecast-image").attr('src',img_prefix+horizon+".png");var lasthorizon=horizon-increment;if(lasthorizon<increment){$("#forecast-time-back").hide();$("#forecast-time-back-na").show();}else{if(lasthorizon<10){lasthorizon="0"+lasthorizon;}
$("#forecast-time-back").attr('href',html_prefix+lasthorizon+".htm");}
var nexthorizon=parseInt(horizon,10)+increment;if(nexthorizon>max_horizon){$("#forecast-time-next").hide();$("#forecast-time-next-na").show();}else{if(nexthorizon<10){nexthorizon="0"+nexthorizon;}
$("#forecast-time-next").attr('href',html_prefix+nexthorizon+".htm");}
$("#forecast-time option").each(function(){var link=this.value;link.match(/(\d+)/);var link_horizon=RegExp.$1;if(link_horizon==horizon){$(this).attr('selected',"selected");}});}});function getHorizon(){window.location.pathname.match(/(\d+)/);var result=RegExp.$1;if(result==null||result==''||result==':'){var d=new Date();var curr_hour=d.getHours();while((curr_hour%increment)!=0){curr_hour++;}
result=curr_hour;if(result==0){result="24";}
if(result<10){result="0"+result;}}
return result;}