// Created by DD
// V1.0
var isIe=(document.all)?true:false; 
//设置select的可见状态 
 
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,x,wWidth) 
{ 
 closeWindow(); 
 var bWidth=parseInt(document.documentElement.scrollWidth); 
 var bHeight=parseInt(document.documentElement.scrollHeight); 
 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,50); 
 var mesW=document.createElement("div"); 
 mesW.id="mesWindow"; 
 mesW.className="mesWindow"; 
 mesW.innerHTML="<div class='mesWindowTop'><table width='100%' 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>"; 
 
 styleStr="left:"+x+"px;top:"+(parseInt(document.documentElement.scrollHeight)-460)+"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+=1; 
 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')); 
 } 
 

}

function getViewportHeight() 
{
    if (window.innerHeight!=window.undefined) return window.innerHeight;
    if (document.compatMode=='CSS1Compat') return document.documentElement.clientHeight;
    if (document.body) return document.body.clientHeight; 
    return window.undefined; 
}
function getViewportWidth()
{
    var offset = 17;
    var width = null;
    if (window.innerWidth!=window.undefined) return window.innerWidth; 
    if (document.compatMode=='CSS1Compat') return document.documentElement.clientWidth; 
    if (document.body) return document.body.clientWidth; 
}