Кто знает как добавить javascript-событие на кнопку в форме 
Contact Form by Supsystic?
 Куда это дело (onclick="yaCounter########.reachGoal('********'); return true;") вставить?

В плагине такой код.
<div [field_shell_classes] [field_shell_styles]>[field]</div>

CSS:



#[SHELL_ID] {
  [if bg_type_0 == 'color']
  background-color: [bg_color_0];
  [elseif bg_type_0 == 'img']
  background-image: url("[bg_img_0]");
  background-repeat: no-repeat;
  background-size: cover;
  [endif]
}
#[SHELL_ID] label {
width: 100%;
}
/*Fields shell basic*/
#[SHELL_ID] .cfsFieldShell input:not([type="checkbox"]):not([type="radio"]),
#[SHELL_ID] .cfsFieldShell textarea,
#[SHELL_ID] .cfsFieldShell .cfsListSelect, 
#[SHELL_ID] .cfsFieldShell .cfsCheck,
#[SHELL_ID] .cfsFieldShell button {
    padding: 10px;
    width: 100%;
    font-size: 12px;
    line-height: normal;
  [if bg_type_1 == 'color']
  border: 1px solid {{adjust_opacity("[bg_color_1]", 1)}};
  background-color: {{adjust_brightness("[bg_color_1]", 196)}};
  [elseif bg_type_1 == 'img']
  background-image: url("[bg_img_1]");
  background-repeat: no-repeat;
  background-size: cover;
  [endif]
    hyphens: none;
    border-radius: 4px;
    margin: 0;
    max-width: 100%;
    vertical-align: baseline;
  display: block;
  color: #333;
  height: auto;
}
#[SHELL_ID] input:not([type="checkbox"]):not([type="radio"]):focus,
#[SHELL_ID] textarea:focus,
#[SHELL_ID] .cfsListSelect:focus, 
#[SHELL_ID] .cfsChec:focus {
[if bg_type_2 == 'color']
  border: 1px solid [bg_color_2];
  color: [bg_color_2];
  [endif]
}
#[SHELL_ID] .cfsFieldShell input[type="submit"], 
#[SHELL_ID] .cfsFieldShell input[type="reset"], 
#[SHELL_ID] .cfsFieldShell input[type="button"],
#[SHELL_ID] .cfsFieldShell button {
cursor: pointer;
  font-weight: 700;
    border: 0 none;
    color: #fff;
    text-transform: uppercase;
  -webkit-appearance: none;
}
#[SHELL_ID] .cfsFieldShell input[type="submit"], 
#[SHELL_ID] .cfsFieldShell input[type="button"],
#[SHELL_ID] .cfsFieldShell button {
[if bg_type_2 == 'color']
  background-color: [bg_color_2];
  background-image: none;
  [elseif bg_type_2 == 'img']
  background-image: url("[bg_img_2]");
  background-repeat: no-repeat;
  background-size: cover;
  [endif]
}
#[SHELL_ID] .cfsFieldShell input[type="submit"]:hover, 
#[SHELL_ID] .cfsFieldShell input[type="button"]:hover,
#[SHELL_ID] .cfsFieldShell button:hover {
  [if bg_type_2 == 'color']
  background-color: {{adjust_opacity("[bg_color_2]", 0.7)}};
  [elseif bg_type_2 == 'img']
  opacity: 0.7;
  [endif]
}
#[SHELL_ID] .cfsFieldShell input[type="reset"] {
[if bg_type_3 == 'color']
  background-color: [bg_color_3];
  background-image: none;
  [elseif bg_type_3 == 'img']
  background-image: url("[bg_img_3]");
  background-repeat: no-repeat;
  background-size: cover;
  [endif]
}
#[SHELL_ID] .cfsFieldShell input[type="reset"]:hover {
[if bg_type_3 == 'color']
  background-color: {{adjust_opacity("[bg_color_3]", 0.7)}};
  [elseif bg_type_3 == 'img']
  opacity: 0.7;
  [endif]
}
/* Placeholder text color -- selectors need to be separate to work. */
#[SHELL_ID] ::-webkit-input-placeholder {
color: rgba(51, 51, 51, 0.3);
}
#[SHELL_ID] :-moz-placeholder {
color: rgba(51, 51, 51, 0.3);
}
#[SHELL_ID] ::-moz-placeholder {
color: rgba(51, 51, 51, 0.3);
opacity: 1; /* Since FF19 lowers the opacity of the placeholder by default */
}
#[SHELL_ID] :-ms-input-placeholder {
color: rgba(51, 51, 51, 0.3);
}


HTML:



[form_start]
[fields]
[form_end]