//######### START of  popup window and dark background ######### 
var isIe=(document.all)?true:false;
//設置select的可見狀態
function setSelectState(state)
{
var objl=document.getElementsByTagName('select');
for(var i=0;i<objl.length;i++)
{
objl[i].style.visibility=state;
}
}
function mousePosition(ev)
{
if(ev.pageX || ev.pageY)
{
return {x:ev.pageX, y:ev.pageY};
}
return {
x:ev.clientX + document.body.scrollLeft - document.body.clientLeft,y:ev.clientY + document.body.scrollTop - document.body.clientTop
};
}
//跳出方法
function showMessageBox(wTitle,content,pos,wWidth)
{
closeWindow();
var bWidth=parseInt(document.documentElement.scrollWidth);
var bHeight=3000; //parseInt(document.documentElement.scrollHeight);
if(isIe){
setSelectState('hidden');}
var back=document.createElement("div");
back.id="back";
var styleStr="z-index:10005;top:0px;left:0px;position:absolute;background:#666;width:"+bWidth+"px;height:"+bHeight+"px;";
styleStr+=(isIe)?"filter:alpha(opacity=0);":"opacity:0;";
back.style.cssText=styleStr;
document.body.appendChild(back);
showBackground(back,20);
var mesW=document.createElement("div");
mesW.id="mesWindow";
mesW.className="mesWindow";
mesW.innerHTML="<div class='mesWindowTop'><table width='100%' height='100%'><tr><td colspan=2 align=right style='width:200px;text-align: right;'><input type='button' onclick='closeWindow();' title='關閉視窗' class='close' value='點我關閉視窗' /><a href='#' onclick='closeWindow();return false;'><img src=http://group.bokee.com/expose/images/icon-close.gif border=0></a></td></tr></table></div><div class='mesWindowContent' id='mesWindowContent'>"+content+"</div><div class='mesWindowBottom'></div>";
//styleStr="left:"+(((pos.x-wWidth)>0)?(pos.x-wWidth):pos.x)+"px;top:"+(pos.y)+"px;position:absolute;width:"+wWidth+"px;";
var posY = getScreenCenterY();
styleStr="left:50px;top:"+(posY-150)+"px;position:absolute;width:"+wWidth+"px;";
mesW.style.cssText=styleStr;
document.body.appendChild(mesW);
}
//讓背景漸漸變暗
function showBackground(obj,endInt)
{
if(isIe)
{
obj.filters.alpha.opacity+=4;
if(obj.filters.alpha.opacity<endInt)
{
setTimeout(function(){showBackground(obj,endInt)},1);
}
}else{
var al=parseFloat(obj.style.opacity);al+=0.01;
obj.style.opacity=al;
if(al<(endInt/100))
{setTimeout(function(){showBackground(obj,endInt)},3);}
}
}
//關閉視窗
function closeWindow()
{
if(document.getElementById('back')!=null)
{
document.getElementById('back').parentNode.removeChild(document.getElementById('back'));
}
if(document.getElementById('mesWindow')!=null)
{
document.getElementById('mesWindow').parentNode.removeChild(document.getElementById('mesWindow'));
}
if(isIe){
setSelectState('');}
}

//######### END of  popup window and dark background ######### 

function isInteger (s)
{
  var i;
  if (isEmpty(s))
  if (isInteger.arguments.length == 1) return 0;
  else return (isInteger.arguments[1] == true);

  for (i = 0; i < s.length; i++)
  {
	 var c = s.charAt(i);

	 if (!isDigit(c)) 
		return false;
  }
  return true;
}
function isEmpty(s)
{
  return ((s == null) || (s.length == 0))
}
function isDigit (c)
{
  return ((c >= "0") && (c <= "9"))
}

//######### START of  get browser center ######### 

function getScreenCenterY() {
var y = 0;

y = getScrollOffset()+(getInnerHeight()/2);

return(y);
}

function getScreenCenterX() {
return(document.body.clientWidth/2);
}

function getInnerHeight() {
var y;
if (self.innerHeight) // all except Explorer
{
y = self.innerHeight;
}
else if (document.documentElement &&
document.documentElement.clientHeight)
// Explorer 6 Strict Mode
{
y = document.documentElement.clientHeight;
}
else if (document.body) // other Explorers
{
y = document.body.clientHeight;
}
return(y);
}

function getScrollOffset() {
var y;
if (self.pageYOffset) // all except Explorer
{
y = self.pageYOffset;
}
else if (document.documentElement &&
document.documentElement.scrollTop)
// Explorer 6 Strict
{
y = document.documentElement.scrollTop;
}
else if (document.body) // all other Explorers
{
y = document.body.scrollTop;
}
return(y);
}
//######### END of #########