适配IE8+等浏览器的适配播放插件

function myBrowser(){
var userAgent = navigator.userAgent; //ȡ���������userAgent�ַ�
var isOpera = userAgent.indexOf("Opera") > -1;
if (isOpera) {
return "Opera"
} //�ж��Ƿ�Opera�����
if (userAgent.indexOf("Android") > -1||userAgent.indexOf("iPhone") > -1||userAgent.indexOf("iPad") > -1){
return "Mobile";
}
if (userAgent.indexOf("Firefox") > -1) {
return "FF";
} //�ж��Ƿ�Firefox�����
if (userAgent.indexOf("Chrome") > -1){
return "Chrome";
}
if (userAgent.indexOf("Safari") > -1) {
return "Safari";
} //�ж��Ƿ�Safari�����
if (userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera) {
return "IE";
} //�ж��Ƿ�IE�����
}
function showVedio(url,coverurl,w,h,isAuto){
if(isAuto==null)
{
isAuto=false;
}
var b = myBrowser();var str;
if(b=="Safari"||b=="FF"||b=="Opera"||b=="Mobile")
{
str='<video width="'+w+'" height="'+h+'" controls poster="'+coverurl+'"><source src="'+url+'" type="video/mp4"/></video>'
}
else
{
str='<object id="vcastr3" data="js/vcastr/Flvplayer.swf" height="'+h+'px" width="'+w+'px" type="application/x-shockwave-flash">';
str+='<param name="movie" value="js/vcastr/Flvplayer.swf"><param value="transparent" name="wmode">';
str+='<param name="allowFullScreen" value="true">';
str+='<param name="FlashVars" value="xml=<vcastr><channel><item><source>'+url+'</source><image>'+coverurl+'</image></item></channel><config><isAutoPlay>true</isAutoPlay><isLoadBegin>'+isAuto+'</isLoadBegin><isShowAbout>false</isShowAbout><scaleMode>showAll</scaleMode></config>' +
'<plugIns><beginEndImagePlugIn><url>js/vcastr/beginEndImagePlugIn.swf</url><source>'+coverurl+'</source><type>begin</type><scaleType>exactFit</scaleType></beginEndImagePlugIn></plugIns></vcastr>"></object>';
//'<logoPlugIn><url>js/vcastr/logoPlugIn.swf</url><logoText>www.meowpet.com</logoText><logoTextAlpha>0.75</logoTextAlpha><logoTextFontSize>20</logoTextFontSize><logoTextLink>www.meowpet.com</logoTextLink><logoTextColor>0xffffff</logoTextColor><textMargin>20 20 auto auto</textMargin></logoPlugIn>">';
str+='';
}
document.write(str);
}

使用方法：

<script type="text/javascript">

showVedio("视频地址","视频封面图片",宽,高);

</script>