var xmlProductFilter;


function GetXmlHttpObject(){
    var xmlHttp=null;
    try{
      // Firefox, Opera 8.0+, Safari
      xmlHttp=new XMLHttpRequest();
    }
    catch (e){
  // Internet Explorer
        try{
          xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
        }
        catch (e){
            xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
        }
    }
    return xmlHttp;
}


var filterByChoice="";

function displayByFilterMenu(productId,filterType,selectMenu,dept){
    filterByChoice=filterType;
    xmlProductFilter=GetXmlHttpObject();
    var filterCriteria=selectMenu.options[selectMenu.options.selectedIndex].value;
    var url="index.cgi";
    url=url+"?productFilter="+filterType+"&prt="+productId+"&filterCriteria="+filterCriteria+"&dept="+dept;
    //alert(url);
    xmlProductFilter.onreadystatechange=displayProductsByFilterMenu;
    xmlProductFilter.open("GET",url,true);
    xmlProductFilter.send(null);

}

function displayProductsByFilterMenu(){
    if (xmlProductFilter.readyState==4){
	if(xmlProductFilter.responseText != "" || xmlProductFilter.responseText != false){
	    document.getElementById('productTableContainer').innerHTML=xmlProductFilter.responseText;
	}
	else{
	    alert("Unable to update products with your 'Filter by "+filterByChoice+"' choice");
	}
    }
    return false;
}




/*~~~~~~~~~~~~~~~~~~~~~~~   additonal jQuery code ~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/

/*
    department - category shopping menu
*/
$(function(){
        var theMenuId='#prodMenu ul';
        $(theMenuId+' li ul').hide();
        var activeNode=$.cookie('activeMenu');
        $('#'+activeNode+' ul').show();
        $('#'+activeNode).addClass('activeMenu');
        var activeItem=$.cookie('activeItem');
        $('#'+activeItem).addClass('activeItem');
        $(theMenuId+' li').each(function(){
                var thisId=$(this).attr('id');
                $(this).click(function(){
                        if($('#'+thisId+' ul').css('display') != 'none'){
                                $(theMenuId+' li ul').hide(0);
                        }
                        else{
                                $(theMenuId+' li ul').hide(0);
                                $('#'+thisId+' ul').show(0);
                        }
                        $.cookie('activeMenu',thisId);
                });
                $('#'+thisId+' ul li a').click(function(){
                        $.cookie('activeItem',$(this).parent().attr('id'));
                });
        });
});


/* remove the value of the keywords when taken focus to save manual deletion*/
$(function(){
    $('#keyword').focusin(function(){
	$(this).animate({opacity:1.0},250,function(){
	    $(this).attr('value','');
	});
    });

    $('#keyword').focusout(function(){
	var tv=$(this).attr('value');
	if(tv == ''){
	     $(this).attr('value','Enter Keywords...');
	}
    });
});