$(document).ready(function()
{
    docHeight = $(document).height();
    windowWidth = $(window).width();
    headerWidth = $('.header').width();
    headerHeight = 304;
    footerHeight = 237;
    totalHeight = docHeight - headerHeight - footerHeight
    bgTop = headerHeight 
    
    if ($("body").hasClass('pic1')) 
    {
        bgHeight = 3109
        offSet = -220
    }
    else if ($("body").hasClass('pic2')) 
    {
        bgHeight = 2929
        bgTop = headerHeight + 350              
        offSet = -430        
    } 
    else if ($("body").hasClass('pic3')) 
    {
        bgHeight = 3635         
        bgTop = headerHeight              
        offSet = -780       
    } 
    else if ($("body").hasClass('pic4')) 
    {
        bgHeight = 3618         
        offSet = -380                 
    } 
    else if ($("body").hasClass('pic5')) 
    {
        bgHeight = 1296       
        bgTop = headerHeight + 230     
        offSet = -350                 
    } 
    else if ($("body").hasClass('pic6')) 
    {
        
    } 
    else if ($("body").hasClass('pic7')) 
    {
        bgHeight = 964        
        offSet = -200
    }                
    
    bgLeft = ((windowWidth - headerWidth) / 2) + offSet; 
    
    if (totalHeight > bgHeight)
    {
        // $("body").css('background-position', (bgLeft +'px '+ (docHeight - bgHeight - footerHeight) +'px'))
        // bgTop = (docHeight - bgHeight)

        $("body").css('background-position', (bgLeft +'px '+ bgTop +'px'))
    }  
    else 
    {
        $("body").css('background-position', (bgLeft +'px '+ bgTop +'px'))
    }  
    
    if ($("body").hasClass('contact')) {
        windowHeight = $(window).height()
        contentHeight = $(".container").height();
        newHeight = (windowHeight-contentHeight-40)
        if (newHeight > 237)
            $('.footer').css('height', newHeight);
    }
    
    $(window).resize( function() {
        windowWidth = $(window).width();
        bgLeft = ((windowWidth - headerWidth) / 2) + offSet; 
        
        if (totalHeight > bgHeight)
        {           
            $("body").css('background-position', (bgLeft +'px '+ bgTop +'px'))
        }  
        else 
        {
            bgTop = headerHeight            
            $("body").css('background-position', (bgLeft +'px '+ bgTop +'px'))
        }  
              
        if ($("body").hasClass('contact')) {
            windowHeight = $(window).height()
            contentHeight = $(".container").height();
            newHeight = (windowHeight-contentHeight-40)
            if (newHeight > 237)
                $('.footer').css('height', newHeight);
        }
        
    });
});