.bkleft_lift {
	background-image: url(images/bk_lifting_right.gif);
	background-repeat: repeat-y;
}
.bkright_lift {

	background-image: url(images/bk_lifting_left.gif);
	background-repeat: repeat-y;
}

.bkleft_chemicals {
	background-image: url(images/bk_chemicals_left.gif);
	background-repeat: repeat-y;
}
.bkright_chemicals {

	background-image: url(images/bk_chemicals_right.gif);
	background-repeat: repeat-y;
}
.bkleft_spacers {
	background-image: url(images/bk_spacers_left.gif);
	background-repeat: repeat-y;
}
.bkright_spacers {

	background-image: url(images/bk_spacers_right.gif);
	background-repeat: repeat-y;
}
.bkleft_formwork {
	background-image: url(images/bk_formwork_left.gif);
	background-repeat: repeat-y;
}
.bkright_formwork {

	background-image: url(images/bk_formwork_right.gif);
	background-repeat: repeat-y;
}
.bkleft_new {
	background-image: url(images/bk_newproducts_left.gif);
	background-repeat: repeat-y;
}
.bkright_new {

	background-image: url(images/bk_newproducts_right.gif);
	background-repeat: repeat-y;
}