.custom-checkbox{
	    min-width:37px;
	    height:40px;
		display: inline-block;
		position: relative;
		z-index: 1;
		background: url("seduta-sprite.png") no-repeat;
        background-position: 0px -42px;
		cursor: pointer;
	}
	.custom-checkbox.selected{
        background-position: -37px -42px;
	}
	.custom-checkbox input[type="checkbox"]{
		margin: 0;
		position: absolute;
		z-index: 2;            
		outline: none;
		opacity: 0;
		/* CSS hacks for older browsers */
		_noFocusLine: expression(this.hideFocus=true); 
		-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";
		filter: alpha(opacity=0);
		-khtml-opacity: 0;
		-moz-opacity: 0;
	}