runat="server"

runat="server"

Hi,

I was wondering why when using the UI slider that it doesn't work whenever I make the input box runat="server".

Works: 
   <input type="text" id="amount" style="border:0; color:#f6931f; font-weight:bold;"  /> 
   <div  id="slider1">


Doesn't work: 

   <input type="text" id="amount" style="border:0; color:#f6931f; font-weight:bold;" runat="server"  /> 
   <div  id="slider1">



Thanks for the help...