$(document).ready(function () {
	// set category default setting
	var filter_text =  Array ("Filter by categories", "Search all categories");
	var filter_ico =  Array ("arrow_down.png", "arrow_up.png");
	var cat_height =  Array ("135px", "300px");

	ft = filter_text[0];
	fi = filter_ico[0];
	h = cat_height[0];

	slide_remember = getCookie ("slide");
	
	// slide when clicked 
	$("#filter").click(function (event) {					 
		event.preventDefault();	
		slide_Cat(filter_text, filter_ico, cat_height);
		slide_remember = (slide_remember == "open") ? "closed" : "open";
		setCookie ("slide", slide_remember);
		check_All(document.form_search);
    });

	// slide when by cookie 
	if (slide_remember == "open") { slide_Cat(filter_text, filter_ico, cat_height);}
	
});





//------------- functions ---------------//

// Slide categories function
function slide_Cat(filter_text, filter_ico, cat_height ) {
		// change filter text
		ft = (ft == filter_text[0]) ? filter_text[1] : filter_text[0] ;
		$("#filter_text").text( ft );

		// change filter icon
		fi = (fi == filter_ico[0]) ? filter_ico[1] : filter_ico[0] ;
		$("#filter_ico").attr("src", "images/" + fi);
		
		// change content_top height
		h = (h == cat_height[0]) ? cat_height[1] : cat_height[0];
		$("#content_top").animate({ height: h}, 700);
}

// check all boxes function
function check_All(fmobj) {
  for (var i=0;i<fmobj.elements.length;i++) {
    var e = fmobj.elements[i];
    if ( (e.type=='checkbox') && (!e.disabled) ) {
      e.checked = "true";
    }
  }
}
// Cookies functions
function getCookie( name ) {
	var start = document.cookie.indexOf( name + "=" );
	var len = start + name.length + 1;
	if ( ( !start ) && ( name != document.cookie.substring( 0, name.length ) ) ) {
		return null;
	}
	if ( start == -1 ) return null;
	var end = document.cookie.indexOf( ';', len );
	if ( end == -1 ) end = document.cookie.length;
	return unescape( document.cookie.substring( len, end ) );
}

function setCookie( name, value, expires, path, domain, secure ) {
	var today = new Date();
	today.setTime( today.getTime() );
	if ( expires ) {
		expires = expires * 1000 * 60 * 60 * 24;
	}
	var expires_date = new Date( today.getTime() + (expires) );
	document.cookie = name+'='+escape( value ) +
		( ( expires ) ? ';expires='+expires_date.toGMTString() : '' ) + //expires.toGMTString()
		( ( path ) ? ';path=' + path : '' ) +
		( ( domain ) ? ';domain=' + domain : '' ) +
		( ( secure ) ? ';secure' : '' );
}

function deleteCookie( name, path, domain ) {
	if ( getCookie( name ) ) document.cookie = name + '=' +
			( ( path ) ? ';path=' + path : '') +
			( ( domain ) ? ';domain=' + domain : '' ) +
			';expires=Thu, 01-Jan-1970 00:00:01 GMT';
}