显示DIV的HTML用$('div').innerHTML <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <title>Prototype Ajax</title> <mce:script type="text/javascript" src="prototype.js" mce_src="prototype.js"></mce:script> <mce:script type="text/javascript" src="ajax.js" mce_src="ajax.js"></mce:script> </head> <body> <form method="get" action="http://192.168.0.109:8888/magento/greeting.php" id="greeting-form"> <div id="div1"> <label for="name">Enter your name:</label> <input id="username" name="username" type="text" /> <input id="testbutton" name="testbutton" type="button" onClick="showDivHTML();" value="testbutton"> </div> <div id="divResult"></div> </form> </body> </html> ajax.js function showDivHTML() { alert($('div1').innerHTML); };