if
(
$
(
'body'
)
.
hasClass
(
'slide-background'
)
)
{
$
(
"body"
)
.
backstretch
(
[
"http://placehold.it/1980x1080"
,
"http://placehold.it/1980x1080"
,
"http://placehold.it/1980x1080"
,
]
,
{
duration
:
3000
,
fade
:
1200
}
)
;