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  1. #1
    Senior Coder crmpicco's Avatar
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    Exclamation check if one of a group of radio buttons have been checked

    I have a problem with my JavaScript validation.

    In my JavaScript function i am trying to check if a radio button has been checked
    before more code is ran.

    My problem only appears when there is more than one adult.

    This is my JS code if there are MORE than one adult:

    Code:
    kostenzahler = 0;
    
    for (counter = 0; counter <= form.pass.length; counter++)
    		{
    			alert("CONTROL loop = " + counter);	
    			if (document.forms["form"].elements["pass"].checked)
    			{
    				radio_choice = true;
    				kostenzahler = kostenzahler + 1;
    			}
    		}
    This code works when there is only ONE ADULT:
    Code:
    if (document.forms["form"].elements["pass"].checked)
    		{
    			alert("UBERPRUFT!")
    			radio_choice = true;
    		}

    This is my server-side code (ASP):
    (noa = 2 for example)
    Code:
    	<% for x = 1 to noa %>
    	<td id="ADTcell:<%=x%>">
    		<%
    		if CInt(x) <= CInt(noa) then
    		%>	
    		<input type="radio" name="pass" id="adt<%=x%>" onMouseOver="style.cursor='hand'"/>
    		<%
    		else
    			response.Write "&nbsp;"
    		end if
    		%>
    	</td>
    	<% next %>

  • #2
    Senior Coder nikkiH's Avatar
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    If there is more than one, it is an array. You were *this* close.

    Code:
    kostenzahler = 0;
    
    for (counter = 0; counter <= form.pass.length; counter++)
    		{
    			alert("CONTROL loop = " + counter);	
    			if (document.forms["form"].elements["pass"][counter].checked)
    			{
    				radio_choice = true;
    				kostenzahler = kostenzahler + 1;
    			}
    		}

    If this post contains any code, I may or may not have tested it. It's probably just example code, so no getting knickers in a bunch over a typo, OK? If it doesn't have basic error checking in it, such as object detection or checking if objects are null before using them, put that in there. I'm giving examples, not typing up your whole app for you. You run code at your own risk.
    Bored? Visit
    http://www.kaelisspace.com/

  • #3
    Senior Coder crmpicco's Avatar
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    Code:
    if (document.forms["form"].elements["pass"][counter+1].checked)
    Getting an error on that line.

    The radio group is called pass


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