今天在工作遇到一个问题跟大家分享一下：
需求是这样的，在一个B/S的系统中需要调用浏览器的“查找”功能，通常我们的操作是：使用快捷键“Ctrl+F”，但是我的要求是需要通过 JavaScript来主动激活。我先是通过document对象的方法execCommand查找，最后发现没有查找功能，但是它很有用，我把它总结如下：
常用Js代码document.execCommand()的作用： 

<html> 

<body> 

<input type=button value=剪切 οnclick=document.execCommand('Cut')> 

<input type=button value=拷贝 οnclick=document.execCommand('Copy')> 

<input type=button value=粘贴 οnclick=document.execCommand('Paste')> 

<input type=button value=撤消 οnclick=document.execCommand('Undo')> 

<input type=button value=重做 οnclick=document.execCommand('Redo') id=button2 name=button2> 

<input> 

<input type=button value=删除 οnclick=document.execCommand('Delete')> 

<input type=button value=黑体 οnclick=document.execCommand('Bold')> 

<input type=button value=斜体 οnclick=document.execCommand('Italic')> 

<input type=button value=下划线 οnclick=document.execCommand('Underline')> 

<input type=button value=停止 οnclick=document.execCommand('stop')> 

<input type=button value=保存 οnclick=document.execCommand('SaveAs')> 

<input type=button value=另存为 οnclick=document.execCommand('Saveas',false,'c:\\test.htm')> 

<input type=button value=字体 οnclick=document.execCommand('FontName',false,fn)> 

<input type=button value=字体大小 οnclick=document.execCommand('FontSize',false,fs)> 

<input type=button value=刷新 οnclick=document.execCommand('refresh',false,0)> 

</body> 

</html> 

下面列出的是指令参数及意义： 

//相当于单击文件中的打开按钮 

document.execCommand("Open"); 

//将当前页面另存为 

document.execCommand("SaveAs"); 

//剪贴选中的文字到剪贴板; 

document.execCommand("Cut","false",null); 

//删除选中的文字; 

document.execCommand("Delete","false",null); 

//改变选中区域的字体; 

document.execCommand("FontName","false",sFontName); 

//改变选中区域的字体大小; 

document.execCommand("FontSize","false",sSize|iSize); 

//设置前景颜色; 

document.execCommand("ForeColor","false",sColor); 

//使绝对定位的对象可直接拖动; 

document.execCommand("2D-Position","false","true"); 

//使对象定位变成绝对定位; 

document.execCommand("AbsolutePosition","false","true"); 

//设置背景颜色; 

document.execCommand("BackColor","false",sColor); 

//使选中区域的文字加粗; 

document.execCommand("Bold","false",null); 

//复制选中的文字到剪贴板; 

document.execCommand("Copy","false",null); 

 //设置指定锚点为书签; 

document.execCommand("CreateBookmark","false",sAnchorName); 

//将选中文本变成超连接,若第二个参数为true,会出现参数设置对话框; 

document.execCommand("CreateLink","false",sLinkURL); 

 //设置当前块的标签名; 

document.execCommand("FormatBlock","false",sTagName); 

//相当于单击文件中的打开按钮 

document.execCommand("Open"); 

//将当前页面另存为 

document.execCommand("SaveAs"); 

//剪贴选中的文字到剪贴板; 

document.execCommand("Cut","false",null); 

//删除选中的文字; 

document.execCommand("Delete","false",null); 

//改变选中区域的字体; 

document.execCommand("FontName","false",sFontName); 

//改变选中区域的字体大小; 

document.execCommand("FontSize","false",sSize|iSize); 

//设置前景颜色; 

document.execCommand("ForeColor","false",sColor); 

//使绝对定位的对象可直接拖动; 

document.execCommand("2D-Position","false","true"); 

//使对象定位变成绝对定位; 

document.execCommand("AbsolutePosition","false","true"); 

//设置背景颜色; 

document.execCommand("BackColor","false",sColor); 

//使选中区域的文字加粗; 

document.execCommand("Bold","false",null); 

//复制选中的文字到剪贴板; 

document.execCommand("Copy","false",null); 

//设置指定锚点为书签; 

document.execCommand("CreateBookmark","false",sAnchorName); 

//将选中文本变成超连接,若第二个参数为true,会出现参数设置对话框; 

document.execCommand("CreateLink","false",sLinkURL); 

//设置当前块的标签名; 

document.execCommand("FormatBlock","false",sTagName); 

知道此路不通，该道而行，解决方案如下： 

<html> 

<body> 

<input type="button" value="查找" onClick="selecttool()"/> 

</body> 

</html> 

<script language="javascript"> 

function selecttool(){ 

var WshShell = new ActiveXObject("Wscript.Shell"); 

 try{WshShell.SendKeys("^f");} catch(e){} 

WshShell.Quit; 

} 

</script>