Pass Variable to Javascript from ASP.NET

I have what is probably a simple syntactical problem.  As background, the button is in a nested ListView, but it seems like it should be pretty straightforward.  The js function simply takes the TripID variable and opens a popup window with the data.  The error message is that the server tag is not well formed which makes me think it is a matter of quotes and single ticks but I'm not having any luck finding an example of how best to fix this.  Thanks for the help.

<asp:LinkButton ID="btnRegistered" runat="server" Text="See Who Has Registered" CssClass="readmore" OnClientClick="listWindowOpen('<%# Eval("TripID") %>');return false;" UseSubmitBehavior="False" />
AJ0718Asked:
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GaryCommented:
<asp:LinkButton ID="btnRegistered" runat="server" Text="See Who Has Registered" CssClass="readmore" OnClientClick="listWindowOpen('<%# Eval(""TripID"") %>');return false;" UseSubmitBehavior="False" /> 

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AJ0718Author Commented:
Nope; same parser error.
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GaryCommented:
<asp:LinkButton ID="btnRegistered" runat="server" Text="See Who Has Registered" CssClass="readmore" OnClientClick="listWindowOpen('<%# Eval(\"TripID\") %>');return false;" UseSubmitBehavior="False" /> 

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AJ0718Author Commented:
Same problem.  I'm beginning to think this maybe isn't possible...
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GaryCommented:
Remove the runat="server"

 <asp:LinkButton ID="btnRegistered" Text="See Who Has Registered" CssClass="readmore" OnClientClick="listWindowOpen('<%# Eval("TripID") %>');return false;" UseSubmitBehavior="False" />

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AJ0718Author Commented:
Thanks for trying but it had to be a server control so I could bind the data.  You might be interested in how I finally solved it.  I had to make it a command button and then the command passes the argument and triggers the Javascript function in the code behind.
<asp:LinkButton ID="btnRegistered" runat="server" Text="See Who Has Registered" CssClass="readmore"
                                            CommandName="TripList" CommandArgument='<%# Eval("TripID") %>' />
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GaryCommented:
Ahh right, select your own answer as the comment
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AJ0718Author Commented:
This had to be a server control to bind the value. By making it a command button and writing the item command handler in the code behind, I could then register the script and it runs.
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