function ClearHtmlTags()
    {
      for(var i=0;i<document.forms[0].elements.length;i++)
      {
        if (document.forms[0].elements[i].type == "text" || document.forms[0].elements[i].type == "textarea")
        {
          if (document.forms[0].elements[i].value.indexOf("<") >= 0)
          {
            do
            {
                  document.forms[0][i].value = document.forms[0].elements[i].value.replace("<","&lt;")
            }
            while (document.forms[0].elements[i].value.indexOf("<") >= 0);
          }
          
          if (document.forms[0].elements[i].value.indexOf(">") >= 0)
          {      
            do
            {
                  document.forms[0][i].value = document.forms[0].elements[i].value.replace(">","&gt;")
            }
            while (document.forms[0].elements[i].value.indexOf(">") >= 0);
          }
        }
      }
    }