javascript小技巧[12]

<IE:clientCaps ID="oClientCaps" style="{behavior:url(#default#clientcaps)}" />
<SCRIPT>
var flash="";
    WMPVersion=
oClientCaps.getComponentVersion("{22D6F312-B0F6-11D0-94AB-0080C74C7E95}","ComponentID");
 
    if (WMPVersion != "") {
    flash = "";
    var version = WMPVersion.split(",");
    var i;
    for (i = 0; i < version.length; i++) {
      if (i != 0)
    flash += ".";
      flash += version[i];
    }
     document.write("您的Windows Media Player 版本是:"+flash+"<p>");
  }
</SCRIPT>

//图象按比例

<script language="JavaScript">
<!--
//图片按比例缩放
var flag=false;
function DrawImage(ImgD){
 var image=new Image();
 var iwidth = 80;  //定义允许图片宽度
 var iheight = 80;  //定义允许图片高度
 image.src=ImgD.src;
 if(image.width>0 && image.height>0){
 flag=true;
 if(image.width/image.height>= iwidth/iheight){
  if(image.width>iwidth){  
  ImgD.width=iwidth;
  ImgD.height=(image.height*iwidth)/image.width;
  }else{
  ImgD.width=image.width;  
  ImgD.height=image.height;
  }
  ImgD.alt=image.width+"×"+image.height;
  }
 else{
  if(image.height>iheight){  
  ImgD.height=iheight;
  ImgD.width=(image.width*iheight)/image.height;  
  }else{
  ImgD.width=image.width;  
  ImgD.height=image.height;
  }
  ImgD.alt=image.width+"×"+image.height;
  }
 }
} 
//-->
</script>
<img src=".." onload = "DrawImage(this)">

//细线SELECT

<span style="border:1px solid #000000; position:absolute; overflow:hidden;" >
<select style="margin:-2px;">
<option>1111</option>
<option>11111111111111</option>
<option>111111111</option>
</select></span>

//Import

function Import() {
 for( var i=0; i<arguments.length; i++ ) {
  var file = arguments[i];
  if ( file.match(/\.js$/i)) 
   document.write('<script type=\"text/javascript\" src=\"' + file + '\"></sc' +
'ript>');
  else
   document.write('<style type=\"text/css\">@import \"' + file + '\"
;</style>');
 }
};

//js枚举
function getComputerName()
{
 var objWMIService = GetObject("Winmgmts:root\cimv2");
 for(e = new Enumerator(objWMIService) ; !e.atEnd() ; e.moveNext())
 {
    var getComputer = e.item();
    return getComputer.Name;
 }
}

//条件编译

<script language=javascript>
/*@cc_on @*/
/*@if (@_win32 && @_jscript_version>5)
function window.confirm(str)
{
    execScript("n = msgbox('"+ str +"', 257)", "vbscript");
    return(n == 1);
}
@end @*/
</script>

//取得innerText