jQuery template: Creating a conditional statement with AND operators

This works:

<input type="checkbox" {{if (ON) 开发者_StackOverflow}} checked {{/if}} id="cbCentral" />

This doesn't work:

<input type="checkbox" {{if (ON && QC) }} checked {{/if}} id="cbCentral" />

It seems && cannot be used to represent an AND operator. How can I express an AND operator? ON and QC are type boolean.

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This should work:

{{if ON && QC}}checked{{/if}}

I threw together a simple test using AND in an {{if}} here: http://jsfiddle.net/Encosia/vNXV5/