Knockout – Getting clicked element

Here is a jsFiddle with one possible solution:

http://jsfiddle.net/unklefolk/399MF/1/

You can target the DOM elements you want via this syntax:

var viewModel = {     
    helpClicked: function (item, event) {   
        $(event.target).hide(); 
        $(event.target).next(".help").show()            
    } 
};  
ko.applyBindings(viewModel); ​