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,wWidth){ 
	//closeWindow(); 
	var bWidth=parseInt(document.documentElement.scrollWidth); 
	var bHeight=parseInt(document.documentElement.scrollHeight); 
	if(isIe){ 
		setSelectState('hidden');
	} 
	var back=document.createElement("div"); 
	back.id="back"; 
	var styleStr="top:0px;left:0px;position:absolute;background:#000;width:100%;height:100%;"; 
	styleStr+=(isIe)?"filter:alpha(opacity=0);":"opacity:0;"; 
	back.style.cssText=styleStr; 
	document.body.appendChild(back); 
	showBackground(back,80);
	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="width:"+wWidth+"px;z-index:9;left:0;top:0;position:absolute;"; 
	mesW.style.cssText=styleStr; 
	document.body.appendChild(mesW);
	
	mesWidth = document.getElementById('mesWindow').offsetWidth;
	mesHeigh = document.getElementById('mesWindow').offsetHeight;
	document.getElementById('mesWindow').style.left = (document.body.clientWidth-30-mesWidth)/2 + "px";
	document.getElementById('mesWindow').style.top = (document.body.clientHeight-30-mesHeigh)/2 + "px";
	//alert(document.getElementById('mesWindow').offsetHeight); 
	
} 
//让背景渐渐变暗 
function showBackground(obj,endInt){ 
	if(isIe){ 
		obj.filters.alpha.opacity+=10; 
		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);
		} 
	} 
}

function hideBackground(obj,endInt){ 
	if(isIe){ 
		obj.filters.alpha.opacity-=10; 
		if(obj.filters.alpha.opacity>endInt){ 
			setTimeout(function(){hideBackground(obj,endInt)},5); 
		} 
	}else{ 
		var al=parseFloat(obj.style.opacity);al-=0.01; 
		obj.style.opacity=al; 
		if(al>(endInt/100)){
			setTimeout(function(){hideBackground(obj,endInt)},5);
		} 
	} 
} 

//关闭窗口 
function closeWindow(){
		if(document.getElementById('mesWindow')!=null){ 
			document.getElementById('mesWindow').parentNode.removeChild(document.getElementById('mesWindow')); 
		} 
	hideBackground(document.getElementById('back'),0);
	setTimeout(function(){
		if(document.getElementById('back')!=null){ 
			document.getElementById('back').parentNode.removeChild(document.getElementById('back')); 
		} 
	
		if(isIe){setSelectState('');} 
	},500);
} 
//弹出 
function VideoBox(tit,url,vWidth,vHeight){
	messContent="<div style='padding:10px;text-align:center;'>"+centerVideo(url,vWidth,vHeight)+"</div>"; 
	showMessageBox(tit,messContent,700);
}
function centerVideo(Url,Width,Height){
	Height = null == Height || "" == Height ? 450 : Height;
	Width =  null == Width || "" == Width ? 660 : Width;
	var HtmlStr = "";
	HtmlStr = "<object style='border:1px solid #003C6E' type='application/x-shockwave-flash' data='videoPlayer/vcastr3.swf' width='"+Width+"' height='"+Height+"' id='vcastr3'>" +
			"<param name='movie' value='videoPlayer/vcastr3.swf'/>" +
			"<param name='allowFullScreen' value='true' />" +
			"<param name='FlashVars' value='xml=" +
			"<vcastr>" +
			"<channel><item>" +
			"<source>"+Url+"</source>" +
			"<duration></duration>" +
			"<title></title>" +
			"</item></channel>" +
			"<config>" +
			"<isAutoPlay>false</isAutoPlay>" +
			"<controlPanelBgColor>0x003C6E</controlPanelBgColor>" +
			"</config>" +
			"<plugIns>" +
			"<beginendimageplugin>" +
			"<url>videoPlayer/beginEndImagePlugIn.swf</url>" +
			"<source>logo.swf</source>" +
			"<type>begin</type>" +
			"<scaletype>showAll</scaletype>" +
			"</beginendimageplugin>" +
			"</plugIns>" +
			"</vcastr>" +
			"'/>" +
			"</object>";
	return HtmlStr;
}