var isIe=(document.all)?true:false;
//设置select的可见状态
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
};
}
//弹出方法
function showMessageBox(wTitle,content,pos,wWidth)
{
closeWindow();
var bWidth=parseInt(document.documentElement.scrollWidth)-5;
var bHeight=parseInt(document.documentElement.scrollHeight)+300;

var popWidth=parseInt(document.documentElement.scrollWidth)/2-331;
var popTop=10;

if(isIe){
	setSelectState('hidden');}
	var back=document.createElement("div");
	back.id="back";
	var styleStr="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,70);

	var mesW=document.createElement("div");
	mesW.id="mesWindow";
	mesW.className="mesWindow";
	mesW.innerHTML="<div class='mesWindowTop'><table width='663' height='100%'><tr><td>"+wTitle+"</td><td style='width:1px;'><input type='button' onclick='closeWindow();' title='关闭窗口' class='close' value='关闭' /></td></tr></table></div><div class='mesWindowContent' id='mesWindowContent'>"+content+"</div><div class='mesWindowBottom'></div><table width='663' height='100%'><tr><td>"+wTitle+"</td><td style='width:1px;'><input type='button' onclick='closeWindow();' title='关闭窗口' class='close' value='关闭' /></td></tr></table>";
	styleStr="left:"+popWidth+"px;top:"+popTop+"px;position:absolute;width:"+wWidth+"px;";
	mesW.style.cssText=styleStr;
	document.body.appendChild(mesW);
}
//让背景渐渐变暗
function showBackground(obj,endInt)
{
if(isIe)
{
obj.filters.alpha.opacity+=5;
if(obj.filters.alpha.opacity<endInt)
{
setTimeout(function(){showBackground(obj,endInt)},5);
}
}else{
var al=parseFloat(obj.style.opacity);al+=0.01;
obj.style.opacity=al;
if(al<(endInt/100))
{setTimeout(function(){showBackground(obj,endInt)},5);}
}
}
//关闭窗口
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('');}
}
//测试弹出
function testMessageBox(ev,bookname,author,translator,isbn,price,publisher,frame,pubdate,pages,pic,summary,booklink)
{
	if(bookname == "") {bookname = "null";}
	if(translator == "") {translator = "null";}
	if(isbn == "") {isbn = "null";}
	if(price == "") {price = "null";}
	if(publisher == "") {publisher = "null";}
	if(frame == "") {frame = "null";}
	if(pubdate == "") {pubdate = "null";}
	if(pages == "") {pages = "null";}
	if(pic == "") {pic = "null";}
	if(summary == "") {summary = "null";}
	if(booklink == "") {booklink = "null";}
	
	
var objPos = mousePosition(ev);

messContent = "<div><img src='./xiaoqing15/images/yqh.jpg'/>"+
"</div>"

showMessageBox('',messContent,objPos,350);
}