单选框和复选框的js取值判断

单选框和复选框的js取值判断 js中radio的取值 Radio 是 HTML 中的单选框，同一个 form 中，name 相同的 Radio 构成一组，这一组中最多只允许有一个 Radio 被选中。 如果将 form 提交到服务器端 ASP 程序，ASP 程序要获得用户选择的那个 Radio 的 value 是非常方便的，用 request.Form("RadioName")，不必理会有几个 Radio。 但在 JS(JavaScript) 中就要复杂多了，我们不能像对其它元素(如:文本框)一样，使用 formid.objName.value 来取值，我们应该循环这个组的 Radio，判断其 checked 属性，再取值。 为了方便使用javascript获取radio的值，我写了一个通用的函数来实现: function GetRadioValue(RadioName){ var obj; obj=document.getElementsByName(RadioName); if(obj!=null){ var i; for(i=0;i are some differences in level of development of the various modes of transport, leading to traffic levels have a greater imbalance. Yibin city, based on the 2008 ~2013 year of external transport of passenger and cargo traffic volume statistics. 2008 ~2013 year, Yibin city, external table 3.1-1 railways roads water transport passenger traffic passenger traffic (million) share (%) Passenger traffic (million) share (%) Passenger traffic (million) share (%) Passenger traffic (million) in 2008 ~2013 year, Yibin city, external transport railways roads water transport traffic statistics 3.1-2 time of air cargo

前天 昨天 今天 明天 后天 提交

前年 去年 今年 明年 后年 提交 全选 反选 全不选

are some differences in level of development of the various modes of transport, leading to traffic levels have a greater imbalance. Yibin city, based on the 2008 ~2013 year of external transport of passenger and cargo traffic volume statistics. 2008 ~2013 year, Yibin city, external table 3.1-1 railways roads water transport passenger traffic passenger traffic (million) share (%) Passenger traffic (million) share (%) Passenger traffic (million) share (%) Passenger traffic (million) in 2008 ~2013 year, Yibin city, external transport railways roads water transport traffic statistics 3.1-2 time of air cargo