function popupImageWindow(width,height) {

	height = height + 20;
	width = width;

	window.open('','image_popup','width=' + width + ',height=' + height);
}

function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}

/* add an onchange event for the brand search dropdown */
function prepareSearch() {

	var search_by_brand_select = document.getElementById('search-by-brand-select');

	search_by_brand_select.onchange = function() {
		this.form.submit();
	}	
}

addLoadEvent(prepareSearch);