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="http://www.topgunclothing.com/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;
}


function swapGalleryImage(imageFile,imageName){
    var parentImageZoom=document.getElementById('parentImageZoom');
    var parentImage=document.getElementById('parentImage');

    parentImageZoom.href='http://www.topgunclothing.com/productImages/1024/'+imageFile;
    parentImage.src='http://www.topgunclothing.com/productImages/360/'+imageFile;

    return false;
}