做一个酷酷的在线编辑器（-）

这里我将贴一个在线编辑（类似CHINAASP）的实现方法
图片可以从XXX地方取，：）
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edit.htm（编辑页面）
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<STYLE TYPE="text/css">
TABLE#tblCoolbar
    {
    background-color:threedface; padding:1px; color:menutext;
    border-width:1px; border-style:solid;
    border-color:threedhighlight threedshadow threedshadow threedhighlight;
    }
.cbtn
    {
    height:18;
    BORDER-LEFT: threedface 1px solid;
    BORDER-RIGHT: threedface 1px solid;
    BORDER-TOP: threedface 1px solid;
    BORDER-BOTTOM: threedface 1px solid;
    }
.txtbtn {font-family:tahoma; font-size:70%; color:menutext;}
</STYLE>

<script LANGUAGE="JavaScript">
function button_over(eButton)
    {
    eButton.style.backgroundColor = "#B5BDD6";
    eButton.style.borderColor = "darkblue darkblue darkblue darkblue";
    }
function button_out(eButton)
    {
    eButton.style.backgroundColor = "threedface";
    eButton.style.borderColor = "threedface";
    }
function button_down(eButton)
    {
    eButton.style.backgroundColor = "#8494B5";
    eButton.style.borderColor = "darkblue darkblue darkblue darkblue";
    }
function button_up(eButton)
    {
    eButton.style.backgroundColor = "#B5BDD6";
    eButton.style.borderColor = "darkblue darkblue darkblue darkblue";
    eButton = null;
    }
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

var isHTMLMode=false

function document.onreadystatechange()
    {
      idContent.document.designMode="On"
    }
function cmdExec(cmd,opt)
    {
      if (isHTMLMode){alert("Please uncheck @#Edit HTML@#");return;}
      idContent.document.execCommand(cmd,"",opt);idContent.focus();
    }
function setMode(bMode)
    {
    var sTmp;
      isHTMLMode = bMode;
      if (isHTMLMode){sTmp=idContent.document.body.innerHTML;idContent.document.body.innerText=sTmp;}
    else {sTmp=idContent.document.body.innerText;idContent.document.body.innerHTML=sTmp;}
      idContent.focus();
    }
function createLink()
    {
    if (isHTMLMode){alert("Please uncheck @#Edit HTML@#");return;}
    cmdExec("CreateLink");
    }
function insertImage()
    {
    if (isHTMLMode){alert("Please uncheck @#Edit HTML@#");return;}
    var sImgSrc=prompt("Insert Image File (You can use your local image file) : ", "http://www.aspalliance.com/Yusuf/Article10/sample.jpg");
    if(sImgSrc!=null) cmdExec("InsertImage",sImgSrc);
    }
function Save()
    {
    if (isHTMLMode){alert("Please uncheck @#Edit HTML@#");return;}
      var sImgTag = idContent.document.body.all.tags("IMG");
      var oImg;
      for (var i = sImgTag.length - 1; i >= 0; i--)
        {
        oImg = sImgTag[i];
        alert("Add your code to Upload local image file here. Image Inserted : " + oImg.src );
          }
      alert("Add your code to Save Document here");
      alert("Your Document : " + idContent.document.body.innerHTML);
    }
function foreColor()
    {
    var arr = showModalDialog("selcolor.htm","","font-family:Verdana; font-size:12; dialogWidth:30em; dialogHeight:34em" );
    if (arr != null) cmdExec("ForeColor",arr);    
    }
</script>

<P><STRONG><FONT size=3>在线编辑器</FONT></STRONG></P>

<table id="tblCoolbar" width=542 cellpadding="0" cellspacing="0">
<tr valign="middle">

    <td colspan=16>
        <select onchange="cmdExec(@#formatBlock@#,this[this.selectedIndex].value);this.selectedIndex=0">
            <option selected>Style</option>
            <option value="Normal">Normal</option>
            <option value="Heading 1">Heading 1</option>
            <option value="Heading 2">Heading 2</option>
            <option value="Heading 3">Heading 3</option>
            <option value="Heading 4">Heading 4</option>
            <option value="Heading 5">Heading 5</option>
            <option value="Address">Address</option>
            <option value="Formatted">Formatted</option>
            <option value="Definition Term">Definition Term</option>
        </select>
        <select onchange="cmdExec(@#fontname@#,this[this.selectedIndex].value);">
            <option selected>Font</option>
            <option value="Arial">Arial</option>
            <option value="Arial Black">Arial Black</option>
            <option value="Arial Narrow">Arial Narrow</option>
            <option value="Comic Sans MS">Comic Sans MS</option>
            <option value="Courier New">Courier New</option>
            <option value="System">System</option>
            <option value="Tahoma">Tahoma</option>
            <option value="Times New Roman">Times New Roman</option>
            <option value="Verdana">Verdana</option>
            <option value="Wingdings">Wingdings</option>
        </select>
        <select onchange="cmdExec(@#fontsize@#,this[this.selectedIndex].value);">
            <option selected>Size</option>
            <option value="1">1</option>
            <option value="2">2</option>
            <option value="3">3</option>
            <option value="4">4</option>
            <option value="5">5</option>
            <option value="6">6</option>
            <option value="7">7</option>
            <option value="8">8</option>
            <option value="10">10</option>
            <option value="12">12</option>
            <option value="14">14</option>
        </select>
        
    </td>
    
</tr>
<tr>

    <td><div class="cbtn" onClick="cmdExec(@#cut@#)" onmouseover="button_over(this);" onmouseout="button_out(this);" onmousedown="button_down(this);" onmouseup="button_up(this);">
    <img hspace="1" vspace=1 align=absmiddle src="images/Cut.gif" alt="Cut">
    </div></td>
    
    <td><div class="cbtn" onClick="cmdExec(@#copy@#)" onmouseover="button_over(this);" onmouseout="button_out(this);" onmousedown="button_down(this);" onmouseup="button_up(this);">
    <img hspace="1" vspace=1 align=absmiddle src="images/Copy.gif" alt="Copy">
    </div></td>    
    
    <td><div class="cbtn" onClick="cmdExec(@#paste@#)" onmouseover="button_over(this);" onmouseout="button_out(this);" onmousedown="button_down(this);" onmouseup="button_up(this);">
    <img hspace="1" vspace=1 align=absmiddle src="images/Paste.gif" alt="Paste">
    </div></td>    
    
    <td><div class="cbtn" onClick="cmdExec(@#bold@#)" onmouseover="button_over(this);" onmouseout="button_out(this);" onmousedown="button_down(this);" onmouseup="button_up(this);">
    <img hspace="1" vspace=1 align=absmiddle src="images/Bold.gif" alt="Bold">
    </div></td>
    
    <td><div class="cbtn" onClick="cmdExec(@#italic@#)" onmouseover="button_over(this);" onmouseout="button_out(this);" onmousedown="button_down(this);" onmouseup="button_up(this);">
    <img hspace="1" vspace=1 align=absmiddle src="images/Italic.gif" alt="Italic">
    </div></td>    
    
    <td><div class="cbtn" onClick="cmdExec(@#underline@#)" onmouseover="button_over(this);" onmouseout="button_out(this);" onmousedown="button_down(this);" onmouseup="button_up(this);">
    <img hspace="1" vspace=1 align=absmiddle src="images/Under.gif" alt="Underline">
    </div></td>        
        
    <td><div class="cbtn" onClick="cmdExec(@#justifyleft@#)" onmouseover="button_over(this);" onmouseout="button_out(this);" onmousedown="button_down(this);" onmouseup="button_up(this);">
    <img hspace="1" vspace=1 align=absmiddle src="images/Left.gif" alt="Justify Left">
    </div></td>
    
    <td><div class="cbtn" onClick="cmdExec(@#justifycenter@#)" onmouseover="button_over(this);" onmouseout="button_out(this);" onmousedown="button_down(this);" onmouseup="button_up(this);">
    <img hspace="1" vspace=1 align=absmiddle src="images/Center.gif" alt="Center">
    </div></td>    
    
    <td><div class="cbtn" onClick="cmdExec(@#justifyright@#)" onmouseover="button_over(this);" onmouseout="button_out(this);" onmousedown="button_down(this);" onmouseup="button_up(this);">
    <img hspace="1" vspace=1 align=absmiddle src="images/Right.gif" alt="Justify Right">
    </div></td>        
    
    <td><div class="cbtn" onClick="cmdExec(@#insertorderedlist@#)" onmouseover="button_over(this);" onmouseout="button_out(this);" onmousedown="button_down(this);" onmouseup="button_up(this);">
    <img hspace="2" vspace=1 align=absmiddle src="images/numlist.GIF" alt="Ordered List">
    </div></td>    

    <td><div class="cbtn" onClick="cmdExec(@#insertunorderedlist@#)" onmouseover="button_over(this);" onmouseout="button_out(this);" onmousedown="button_down(this);" onmouseup="button_up(this);">
    <img hspace="2" vspace=1 align=absmiddle src="images/bullist.GIF" alt="Unordered List">
    </div></td>
        
    <td><div class="cbtn" onClick="cmdExec(@#outdent@#)" onmouseover="button_over(this);" onmouseout="button_out(this);" onmousedown="button_down(this);" onmouseup="button_up(this);">
    <img hspace="2" vspace=1 align=absmiddle src="images/deindent.gif" alt="Decrease Indent">
    </div></td>    
    
    <td><div class="cbtn" onClick="cmdExec(@#indent@#)" onmouseover="button_over(this);" onmouseout="button_out(this);" onmousedown="button_down(this);" onmouseup="button_up(this);">
    <img hspace="2" vspace=1 align=absmiddle src="images/inindent.gif" alt="Increase Indent">
    </div></td>            
    
    <td><div class="cbtn" onClick="foreColor()" onmouseover="button_over(this);" onmouseout="button_out(this);" onmousedown="button_down(this);" onmouseup="button_up(this);">
    <img hspace="2" vspace=1 align=absmiddle src="images/fgcolor.gif" alt="Forecolor">
    </div></td>            

    <td><div class="cbtn" onClick="cmdExec(@#createLink@#)" onmouseover="button_over(this);" onmouseout="button_out(this);" onmousedown="button_down(this);" onmouseup="button_up(this);">
    <img hspace="2" vspace=1 align=absmiddle src="images/Link.gif" alt="Link">
    </div></td>    
    
    <td><div class="cbtn" onClick="insertImage()" onmouseover="button_over(this);" onmouseout="button_out(this);" onmousedown="button_down(this);" onmouseup="button_up(this);">
    <img hspace="2" vspace=1 align=absmiddle src="images/Image.gif" alt="Image">
    </div></td>        
    
    <td><div class="cbtn" onClick="Save()" onmouseover="button_over(this);" onmouseout="button_out(this);" onmousedown="button_down(this);" onmouseup="button_up(this);">
    <img  hspace="2" vspace=1 align=left align=absmiddle src="images/Save.gif" alt="Save">
    <font class=txtbtn>Save  </font>
    </div></td>        
        
    <td width=200></td>    
    
</tr>
</table>

<iframe width="542" id="idContent" height="350"></iframe>
<br>
<input type="checkbox" onclick="setMode(this.checked)"> 编辑源代码

原文转自：http://www.ltesting.net