add search with placeholder to bootique73

<?php
/**
 * @package Make
 */
?>

<script>
/* based on http://github.com/NV/placeholder.js/ */
function inputPlaceholder (input, placeholder, color) {

  if (!input) return null;

  var placeholder_color = color || '#AAA';
  var default_color = input.style.color;

  if (input.value === '' || input.value == placeholder) {
    input.value = placeholder;
    input.style.color = placeholder_color;
  }

  var add_event = /*@cc_on'attachEvent'||@*/'addEventListener';

  input[add_event](/*@cc_on'on'+@*/'focus', function(){
    input.style.color = default_color;
    if (input.value == placeholder) {
      input.value = '';
    }
  }, false);

  input[add_event](/*@cc_on'on'+@*/'blur', function(){
    if (input.value === '') {
      input.value = placeholder;
      input.style.color = placeholder_color;
    } else {
      input.style.color = default_color;
    }
  }, false);

  input.form && input.form[add_event](/*@cc_on'on'+@*/'submit', function(){
    if (input.value == placeholder) {
      input.value = '';
    }
  }, false);

  return input;
}

function getElementsByClassName(classname, node)  {
    if(!node) node = document.getElementsByTagName("body")[0];
    var a = [];
    var re = new RegExp('\\b' + classname + '\\b');
    var els = node.getElementsByTagName("*");
    for(var i=0,j=els.length; i<j; i++)
        if(re.test(els[i].className))a.push(els[i]);
    return a;
}


function ecwid_set_placeholder() {
	var search_box = getElementsByClassName('ecwid-SearchPanel-field')[0];
	if (search_box) {
		inputPlaceholder(search_box,'Поиск');
		clearInterval(ecwid_set_placeholder_interval);
	}
}
var ecwid_set_placeholder_interval;
ecwid_set_placeholder_interval = setInterval('ecwid_set_placeholder();',100);
</script>

<div class="search-form">
<div calss="search-field">
<script type="text/javascript" src="http://app.ecwid.com/script.js?4120544" charset="utf-8"></script>
<script type="text/javascript"> xSearchPanel("id=my-search-4120544"); </script>
</div>
</div>