The If / Else Statement Eg.2
http://www.kirupa.com/html5/conditional_statements_if_else_switch_javascript.htm
JavaScript
var safeToProceed = false;
if (safeToProceed) {
alert("You shall pass!");
} else {
alert("You shall not pass!");
}
var safeToProceed = false;
if (safeToProceed) {
alert("You shall pass!");
} else {
alert("You shall not pass!");
}