Gathering html id's from asp.net
<input id="GetLocation" type="button" onclick="getLocation(<%=tbStreet.clientID %>.value + ' ' + <%=tbCity.clientID %>.value + ' ' + <%=tbState.clientID %>.value + ' ' + <%=tbZip.clientID %>.value,'<%=lblLocation.clientID %>');" value="Get Location" />