var isSecondFilerRowHidden = true;

var filterSectionSingleRowHeight = 70;
var filterSectionTwoRowsHeight = 130;
var filterSectionSingleRowLabel = 'more filters...';
var filterSectionTwoRowsLabel = 'fewer filters...';
function getFilterElementsByClass(searchClass,node,tag) {
var classElements = new Array();
if ( node == null )
node = document;
if ( tag == null )
tag = '*';
var els = node.getElementsByTagName(tag);
var elsLen = els.length;
var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
for (i = 0, j = 0; i < elsLen; i++) {
if ( pattern.test(els[i].className) ) {
classElements[j] = els[i];
j++;
}
}
return classElements;
}
function moreLessFilters() {
var link = document.getElementById('bs_moreFiltersLink');
isSecondFilerRowHidden = ! isSecondFilerRowHidden;
link.innerHTML = (isSecondFilerRowHidden ? filterSectionSingleRowLabel : filterSectionTwoRowsLabel);
var filtersPanel = document.getElementById('bs_filters');
filtersPanel.style.height = (isSecondFilerRowHidden ? filterSectionSingleRowHeight : filterSectionTwoRowsHeight);
var filters = getFilterElementsByClass('bs_nextLineFilter',null,'div');
if (filters.length > 0) {
for (i=0; i<filters.length; i++) {
if (isSecondFilerRowHidden) {
filters[i].style.display = 'none';
}
else {
filters[i].style.display = 'block';
}
}
}
return false;
}