which ID is used in javascript function

Question

In my web page am using 2 radio buttons & 1 button ,,by default both radio buttons are false,,,then am click the button i got one alert message will come i.e please select any one radio button .........
function check()
{
if(document.getElementById(" ").value=="")
{
alert("please select any one button");
return false;
}
else
{
alert("you enetered"+document.getElementById(" ").value)
return true;
}
}       here in this javascript function which ID is used in the place of "x"

Krishna Rajput Singh · Answer

Hi Thanks for writing below links helpful for you....... http://stackoverflow.com/questions/17292176/pass-element-id-to-javascript-function https://www.quora.com/In-JavaScript-can-I-just-pass-the-id-of-an-element-as-an-argument-to-a-function

Francis Susaimichael · Answer

You should use Radio button's id in the place of "x". So your code should be like this:
function check() { if (document.getElementById( " " ).value== "" ) { alert( "pleaseselectanyonebutton" ); return false ; } else { alert( "youenetered" +document.getElementById( " " ).value) return true ; } }
Also I already posted this topic in my blog, you can refer the same as well: http://www.aspdotnetchamp.com/2013/08/access-aspnet-server-control-in-client.html