Jquery实时计算
想搞个程序，在页面上选择某几项后自动在当前页面计算出价格。
有下面一段程序。它是提交才显示数值的，我是想直接自动在页面下面自动显示，我还想有一个下接选择的。
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<script language="javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js"></script>
</HEAD>
<BODY>
<form name="form1" id="form1" action ="" method="post" >
<h1> First type questions</h1>
<p > Question1 :
<input id="Question1_1_1" name="Question1_1" type="radio" value="0"/>aa
<input id="Question1_1_2" name="Question1_1" type="radio" value="1"/>bb
<input id="Question1_1_3" name="Question1_1" type="radio" value="2"/>cc
<p > Question2 :
<input id="Question1_2_1" name="Question1_2" type="radio" value="0"/>aa
<input id="Question1_2_2" name="Question1_2" type="radio" value="1"/>bb
<input id="Question1_2_3" name="Question1_2" type="radio" value="2"/>cc
<p > Question3 :
<input id="Question1_3_1" name="Question1_3" type="radio" value="0"/>aa
<input id="Question1_3_2" name="Question1_3" type="radio" value="1"/>bb
<input id="Question1_3_3" name="Question1_3" type="radio" value="2"/>cc
<p>
<input value="submit" type="submit" name="submit" />
</form>
<script language="javascript">
$(function(){
$('#form1').submit(function(){
var i=0;
$(':radio[name!=Question1_]:checked').each(function(){
i+=$(this).val()*1;
})
alert(i);return false;
});
});
</script>
</BODY>
</HTML>
[解决办法]
举个例子，供参考：
<!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=utf-8" /><title>无标题文档</title><script type="text/javascript" src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.7.2.min.js"></script><script type="text/javascript">function calc() { var q1 = parseInt($("input[name='Question1_1']:checked").val()); var q2 = parseInt($("input[name='Question1_2']:checked").val()); var q3 = parseInt($("input[name='Question1_3']:checked").val()); var q4 = parseInt($("#Question2").val()); $("#demo").html('当前选中结果：' + (q1 + q2 + q3 + q4));}$(document).ready( function() { $(":radio").bind('change', calc); $("select").bind('change', calc);});</script></head><body><form name="form1" id="form1" action ="" method="post"> <h1> First type questions</h1> <p> Question1 : <input id="Question1_1_1" name="Question1_1" type="radio" value="0" checked="checked" />aa <input id="Question1_1_2" name="Question1_1" type="radio" value="1" />bb <input id="Question1_1_3" name="Question1_1" type="radio" value="2" />cc </p> <p> Question2 : <input id="Question1_2_1" name="Question1_2" type="radio" value="0" checked="checked" />aa <input id="Question1_2_2" name="Question1_2" type="radio" value="1" />bb <input id="Question1_2_3" name="Question1_2" type="radio" value="2" />cc </p> <p> Question3 : <input id="Question1_3_1" name="Question1_3" type="radio" value="0" checked="checked" />aa <input id="Question1_3_2" name="Question1_3" type="radio" value="1" />bb <input id="Question1_3_3" name="Question1_3" type="radio" value="2" />cc <p> <select id="Question2" name="Question2"> <option value="0">aa</option> <option value="1">bb</option> <option value="2">cc</option> </select> </p> <div id="demo"></div> <p> <input value="submit" type="submit" name="submit" /> </p></form></body></html>