JSFiddle - React, Tailwind, and code Playground

HTML

<form id="cbx">
	
	<label for="cb1">G</label>
	<input name="cb1" type="checkbox">
	
	<label for="cb2">Y</label>
	<input name="cb2" type="checkbox">
	
	<input type="submit" value="Submit">
	
</form>

JavaScript

document.getElementById('cbx').addEventListener(

    'submit', function checkForm(event) {
	
  	event.preventDefault();
    
    var form = document.getElementById("cbx");

    if (form.cb1.checked) {
        window.open('http://google.com/', '_blank');
    }
    if (form.cb2.checked) {
        window.open('http://yahoo.com/', '_blank');
    }

    return true;

});