WYSIWYG组件的实现原理
最近想做一个所见即所得的WEB控件,可是不知道从哪边下手.看了fceditor的代码太复杂,也没理出头绪.   首先想知道的是那个可编辑的框框是个什么控件实现的啊?
------解决方案--------------------主要的原理就是在主窗体中插入一iframe并设置designMode为On然后再对选中文本进行操作   
  <!DOCTYPE html PUBLIC  "-//W3C//DTD XHTML 1.0 Transitional//EN "  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">  
  <html xmlns= "http://www.w3.org/1999/xhtml ">  
  <head>  
  <meta http-equiv= "Content-Type " content= "text/html; charset=gb2312 " />  
  <title> 无标题文档 </title>  
  </head>  
  <body>  
  <iframe src= " " name= "edit " id= "edit " frameborder= "1 " width= "500 " height= "300 ">  </iframe>  
  <script language= "javascript ">  
 window.frames[ "edit "].document.designMode= "On "; 
  </script>  
  </body>  
  </html>