Conditional statements without braces

Why you should use braces in conditional statements

HTML

<input type="button" id="tester" onclick="test();" value="Fire Example"/>

JavaScript

var test=function(){
    if (1 === 1) {
        alert("Case 1");
    }
    /*This is why you use braces in all if statements */
    if (1 === 2) 
        alert("Case 2a");
        //this will fire regardless
        alert("Case 2b");
    
    /*javascript sees this as what follows*/
    if(1===2){
        alert("Case 2a");
    }
    alert("Case 2b");

};