This search box in the header depends on jQueryUI's autocomplete and can be simply triggered by the following code:
new $.nd2Search({ placeholder : "Input Placeholder", // Placeholder in the search field defaultIcon : "globe-alt", // optional: icon | null source : [{ label : 'Displayed Value', value : 'real-value', icon : 'custom-icon'}], // autocomplete : option-source fn : function(result) { // this function will be executed when a valid result item is selected console.log('--- Your custom handling ---'); console.log('you picked: '); console.log(result); } });