var scroll = null;
var amount = 0;
var speed = 30;
var content = null;
var ph_content = null;

function scrollUp(){
  setScroll(2);
}
function scrollDown(){
  setScroll(-2);
}
function setScroll(am){
  amount = am;
  content = document.getElementById('content');
  ph_content = document.getElementById('ph_content');
  scroll = window.setInterval('doScroll()',speed);
}
function doScroll(){
  ph_content.scrollTop += amount;
}
function stopScroll(){
  if(scroll){
    window.clearInterval(scroll);
  }
}

var servername = document.location.href;
servername = servername.substr(servername.indexOf("/")+2,servername.length);
servername = servername.substr(0,servername.indexOf("/"));

function checkTarget(sender){
	sender.target=((sender.href.indexOf(servername)==-1&&sender.href.indexOf('http://')!=-1)||(sender.href.indexOf('/upload/')!=-1))?'_blank':'';
}

window.onload = function(){
  var aas = document.getElementById('content').getElementsByTagName('A');
  for(var i=0;i<aas.length;i++){
    aas[i].onclick = function(){checkTarget(this)};
  }
}