Let link deside what radio button is checked - html

Question

I have 3 links on a page, when clicking on one of the links, the radio button on the other page needs to be checked.
Looks like this:
Go 1
Go 2
Go 3
I have some checkboxes on the page.html which needs to be checked.
<input type="radio" name="amount" value="1" />
<input type="radio" name="amount" value="2" />
<input type="radio" name="amount" value="3" />
When click on Go 2, checkbox 2 needs to be checked.
Anyone knows what js needs to be written?

Answer 1

<input type="radio" name="amount" value="1" /> 1 <br>
<input type="radio" name="amount" value="2" /> 2 <br>
<input type="radio" name="amount" value="3" /> 3 <br>
<script>
function getQueryVariable(variable) {
var query = window.location.search.substring(1);
var vars = query.split('&');
for (var i = 0; i < vars.length; i++) {
var pair = vars[i].split('=');
if (decodeURIComponent(pair[0]) == variable) {
return decodeURIComponent(pair[1]);
}
}
}
var am=getQueryVariable("amount");
var allElems = document.getElementsByName('amount');
for (i = 0; i < allElems.length; i++) {
if (allElems[i].type == 'radio' && allElems[i].value ==am ) {
allElems[i].checked = true;
}
}
</script>
Reference: getQueryVariable() function is taken from Here. Credit goes to # Dorian Gray

Answer 2

You'll need to get the querystring using Javascript - plenty of information on how to do that, one example:
How can I get query string values in JavaScript?
You'll then need to write some Javascript to select the radio button - again, a simple search is your friend:
javascript check radio buttons automatically
Top tip: use the search engine :)