/*================================================== GLOBAL JAVASCRIPT */
/*
    Javascript Document for Savills
    Build: Pete Robelou on behalf of SAS - 06/10/2009
*/

try {
	document.execCommand("BackgroundImageCache", false, true);
} catch (not_ie) {}

//To avoid conflict with other libraries (Prototype)
jQuery.noConflict();

jQuery('html').addClass('js');

//Shadowbox setup
Shadowbox.loadSkin('classic', '/_js/shadowbox/skin'); // use the "classic" skin
Shadowbox.loadLanguage('en', '/_js/shadowbox/lang'); // use the English language
Shadowbox.loadPlayer(['img', 'iframe'], '/_js/shadowbox/player'); // use iframe player

//Global variables
var header_supportnav_timer;
var header_supportnav_timer_duration = 300;
var expand_speed = 250;

jQuery(document).ready(function() {
    /*////////////////////////////////////// INIT */
	//------------------------ FIX IE6 BACKGROUND IMAGE CACHING PROBLEM
    if (jQuery.browser.msie) {
        try { 
            document.execCommand("BackgroundImageCache", false, true); 
        } catch(err) {}
    }  
	
	// MAIN MENU SELECTOR
	// var location_sub = /\/([^\/]+?)\/(([^\/]+?)\.aspx)?/;
	// var address = location_sub.exec(window.location.href.split('/').slice(3).join('/'));
	var address = (window.location.href.split(/[\#\?]/)[0].split('/').slice(3));
	
	jQuery.each(jQuery('#header_navigation_container ul a, .vx_menu a'), function () {
		try {
			var location = this.href.split('/').slice(3);
			// if the location and address are the same
			// if the beginning folder is the same and there is no second page
			if (address[0] !== '' && (location.join('/') == address.join('/') || (location[0] == address[0] && !location[1]))) {
				var active_elements = jQuery(this).parents().filter('li').addClass('current').addClass('sub_level');
			}
		} catch (address_error) {}
	});

        
    // INITIALISE EXPANDABLE MODULES
    InitExpandableModules();
	if (document.body.className == 'home_page') {
    	jQuery("#accordion").accordion({ active: false, collapsible: true, autoHeight: false, header: '.vx_block > .expand_link' });	
		jQuery.each(jQuery('#accordion .expand_link'), function (i) {
			if (i == 0) {
				jQuery(this).addClass('expand_top');
			}
			
			// remove the expand_home_XX classes
			for (var j = 0; j < 10; j++) {
				jQuery(this).removeClass('expand_home_' + ((j+1)+100).toString().substring(1));
			}
			// re-add the expand_home_XX class
			jQuery(this).addClass('expand_home_' + ((i+1)+100).toString().substring(1));
		});
		
   		if (jQuery.cookie('home_accordion') !== null) {
          try {
              jQuery("#accordion").accordion("activate", jQuery('div.' + jQuery.cookie('home_accordion')));
              bar_header = jQuery('div.' + jQuery.cookie('home_accordion'));
              bar_header.find('span').hide();
              bar_header.append('<span class="close">Close</span>');
          } catch(err) {}
        }
	} else {
		jQuery("#accordion").accordion({ active: false, collapsible: true, autoHeight: false });
	}
    jQuery('div.expand_link').click(function(){
		jQuery('.select_dropdown:visible').sSelect();
        return false; 
    });  
	
	// INITIALISE DROPDOWN NAVIGATION 
    jQuery('.dropdown_navigation > li').hover(
	function() { 
	    window.clearTimeout(header_supportnav_timer);
	    hideSupportNav();
	    
	    jQuery('ul', this).css('display', 'block');
	    jQuery(this).addClass('current');	    	 
	    },
    function() {
        if(jQuery(this).hasClass('headlink')){
            header_supportnav_timer = window.setTimeout('hideSupportNav("li.headlink")', header_supportnav_timer_duration);
        }else{
            hideSupportNav();
        }    
	});
	
	// PAGE NAVIGATION CENTER POSITIONING
    var page_container_width = jQuery('.page_navigation_center').parent('.page_navigation_center_container').width();
    var pager_width = jQuery('.page_navigation_center').width();
    var left_position = (page_container_width - pager_width) / 2;           
    jQuery('.page_navigation_center').css('left', left_position + 'px');

	
	// INITIALISE SELECT BOX REPLACEMENT
	jQuery('.select_dropdown:visible').sSelect();
	
	
	// INITIALISE SHADOWBOX
    Shadowbox.init();
	
	
	// ANCHOR SMOOTH SCROLL
    jQuery('#master_container').localScroll();

        
    //------------------------ FORMS         
    InitInputDefaultValue(".searchterms", ".searchbutton", "Search");
	
	jQuery('.showcase_highlight').hover(
		function () {
			jQuery(this).addClass('showcase_highlight_hover');
		},
		function () {
			jQuery(this).removeClass('showcase_highlight_hover');
		}
	);
});


//--------------------------------------------- HIDE DROPDOWN NAVIGATION
function hideSupportNav(current_id) { 
    if(arguments.length > 0){
        jQuery(current_id).find('ul').hide();           
        jQuery(current_id).removeClass('current');
    }else{
        jQuery('.dropdown_navigation li ul').hide();        
        jQuery('.dropdown_navigation > li').removeClass('current');
    } 
};


//--------------------------------------------- EXPANDABLE MODULES	
function InitExpandableModules() {
    jQuery(".expandable a.expand_link").click(function() {
        var link = jQuery(this);
        var org_link_classes = link.attr('class').split('opened')[0].split('closed')[0];
        
        var module_holder = jQuery(this).parents('div.expand_container').find("div.expand_content");                
        if(jQuery(this).find('+ div.expand_content').length > 0){
            module_holder = jQuery(this).find("+ div.expand_content");
        }     
        
        //console.log(org_link_classes);

        module_holder.slideToggle(expand_speed, function() {            
        
            if (link.hasClass('closed')) {
                //if the module was CLOSE and is OPENING
                link.attr('class', org_link_classes + ' opened');                                                                
            } else {
                //if the module was OPEN and is CLOSING
                link.attr('class', org_link_classes + ' closed');                
            }
            
            if(link.find('span:not(.vx_text)').length > 0){                
                if (link.hasClass('opened')) {
                    link.find('span:not(.vx_text)').text('View');
                } else {
                    link.find('span:not(.vx_text)').text('Hide');
                }                
            }       
            
        });
        jQuery(this).toggleClass('close');
        jQuery(this).toggleClass('open');

        return false;
    });
    
    jQuery(".home_page #accordion div.expand_link").click(function() {    
        collapsable_module = jQuery(this).find('+ div.expand_content');
                
        //Open module
        if(collapsable_module.css('display') == 'none'){          
            //Close any other opened modules
            jQuery('.home_page #accordion div.expand_link').each(function(){                   
                close_module(jQuery(this).find('+ div.expand_content'));
            });
               
            //Open the selected module
			var css_class = jQuery(this).attr('class').split(' ');
			for (var i = 0; i < css_class.length; i++) {
				if (/^expand_home_[0-9]+/.test(css_class[i])) {
					jQuery.cookie('home_accordion', css_class[i]);
				}
			}
            jQuery(this).find('span').hide();
            jQuery(this).append('<span class="close">Close</span>');                          
            
            //Close module    
            }else{      
			jQuery.cookie('home_accordion', null);
            close_module(collapsable_module);            
        }
    });
}

function close_module(collapsable_module)
{
    bar_header = collapsable_module.prev('div.expand_link');    
    bar_header.find('span.close').remove();
    bar_header.find('span').show();
}


//--------------------------------------------- FORMS
/* initialize the inputs which requires a 'default value' system */
function InitInputDefaultValue(input_class, submit_class, default_value) {
    var input_text = jQuery(input_class);
    
    //Init the input field
    if (input_text.val() == "") {
        input_text.val(default_value);
    }
    
    //Add input field events
    input_text.click(function() {
        if (jQuery(this).val() == default_value)
            jQuery(this).val("");
    }).blur(function() {
        if (jQuery(this).val() == "")
            jQuery(this).val(default_value);
    });
    
    //Add form submit event
    jQuery(submit_class).click(function() {
        if (input_text.val() == default_value) {
            input_text.val("");
        }
    });
}

function getURLParam(strParamName){
    var strReturn = "";
    var strHref = window.location.href;

    if ( strHref.indexOf("?") > -1 ){        
        var strQueryString = strHref.substr(strHref.indexOf("?")).toLowerCase();
        var aQueryString = strQueryString.split("&");
        for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
            if (aQueryString[iParam].indexOf(strParamName.toLowerCase() + "=") > -1 ){
                var aParam = aQueryString[iParam].split("=");
                strReturn = aParam[1];
                break;
            }
        }
    }
    return strReturn;
}