Check radio buttons ang get value
source http://stackoverflow.com/questions/9618504/get-radio-button-value-with-javascript
function checkhradiobutton(){
var radios = document.getElementsByName('radiobuttons');
for (var i = 0, length = radios.length; i < length; i++) {
if (radios[i].checked) {
// do whatever you want with the checked radio
//alert(radios[i].value);
var req = radios[i].value;
// only one radio can be logically checked, don't check the rest
//break;
return req;
}
}
}