wordpress - js for changing img to background image

(function($) {
	
// store the image link inside a variable from 'src' attribute
var getImageSrc = $('.banner-front-left .fl-post-grid-image img').attr('src');

// add div background image using the variable above
$('.banner-front-left .fl-post-grid-image').css('background-image', 'url(' + getImageSrc + ')');
	
// store the image link inside a variable from 'src' attribute
var getImageSrc = $('.banner-top-right .fl-post-grid-image img').attr('src');

// add div background image using the variable above
$('.banner-top-right .fl-post-grid-image').css('background-image', 'url(' + getImageSrc + ')');	

// store the image link inside a variable from 'src' attribute
var getImageSrc = $('.banner-bottom-left .fl-post-grid-image img').attr('src');

// add div background image using the variable above
$('.banner-bottom-left .fl-post-grid-image').css('background-image', 'url(' + getImageSrc + ')');	
	
	
// store the image link inside a variable from 'src' attribute
var getImageSrc = $('.banner-bottom-right .fl-post-grid-image img').attr('src');

// add div background image using the variable above
$('.banner-bottom-right .fl-post-grid-image').css('background-image', 'url(' + getImageSrc + ')');	
	
	
$('.banner-front .fl-post-grid-image img').remove();
	
})( jQuery );