Select and change A href (adds target blank too), Select Option & Img Src

jqueryselectors.js

// a href Selector and new attr                    
var linksToMondosonoro = $('a[href="/video/urltocatch"]');
$(linksToMondosonoro).attr("href", "http://www.newurl.com")
$(linksToMondosonoro).attr("target","_blank"); // añade un target blank

// Select Selector and new attr 
var selectToMondosonoro = $('#selectmodifier option[value="/video/selecttocatch"]');
$(selectToMondosonoro).val('http://www.newurl.com');

// Img variable and the new property
var new_src = "/nueva/imagen.jpg";
$('img[src="/img/large/1.jpg"]').attr('src',new_src);