function ImageHover(img)
{
    var source = img.src;
    
    if(source.indexOf("-off") > -1)
    {
        img.src = source.replace("-off","-on");
    }
    else
    {
        img.src = source.replace("-on","-off");
    }

}

function checkUncheckAll(box,field)
{
    if (box.checked == true)
    {
        for (i = 0; i < field.length; i++)
            field[i].checked = true ;
    }
    else
    {
        for (i = 0; i < field.length; i++)
            field[i].checked = false ;
    }
}

// Sets the src attribute of the image object passed.
function SwapNavImage(obj, Image)
{
    
    obj.src = Image;
}



function filterButtonClick(titleUpperID,contentID,hdvisibleID,imageID)
{
	var titleDiv=document.getElementById(titleUpperID);
	var contentDiv=document.getElementById(contentID);
	var img = document.getElementById(imageID);
	var vis = document.getElementById(hdvisibleID);
	
	if (titleDiv.className == "FilterSubTitleOff")
	{
		titleDiv.className = "FilterSubTitle";
	}
	else 
	{
		titleDiv.className = "FilterSubTitleOff";
	}
	
	if(vis.value=="1")
	{
	    vis.value="0";
	}
	else
	{
	    vis.value="1";
	}	
	if (contentDiv.className == "FilterContentOff")
	{
		contentDiv.className = "FilterContent";
	}
	else 
	{
		contentDiv.className = "FilterContentOff";
	}
	
    var source = img.src;
    if(source.indexOf("-up") > -1)
    {
        img.src = source.replace("-up","-down");
    }
    else
    {
        img.src = source.replace("-down","-up");
    }

}

function toggleDiv(titleUpperID,contentID,hdvisibleID,imageID)
{
    var titleDv=document.getElementById(titleUpperID);
	var contentDv=document.getElementById(contentID);
	var imgCtrl = document.getElementById(imageID);
	var visCtrl = document.getElementById(hdvisibleID);
	var source = imgCtrl.src;
	if(visCtrl.value=="1")
	{
	    titleDv.className = "FilterSubTitle";
	    contentDv.className = "FilterContent"; 
	    imgCtrl.src = source.replace("-up","-down");
	    
	}
	else
	{
	    titleDv.className = "FilterSubTitleOff";
	    contentDv.className = "FilterContentOff";
	    imgCtrl.src = source.replace("-down","-up");
	}
}