/*
.x-grid3-tricheck-col {
    width:100%;
    height:16px;
    background-repeat:no-repeat;
    background-color:transparent;
}

.x-grid3-tricheck-col-null {
    height:16px;
    width: 25px;
    background-position-y: center;
    background-position-x: 50;
    background-repeat:no-repeat;
    background-color:transparent;
	background-image:url(images/tristate-check-sprite.gif);
}


.x-grid3-tricheck-col-on {
    height:16px;
    width: 25px;
    background-position-y: center;
    background-position-x: 25;
    background-repeat:no-repeat;
    background-color:transparent;
	background-image:url(images/tristate-check-sprite.gif);
}

.x-grid3-tricheck-col-off {
    height:16px;
    width: 25px;
    background-position:left center;
    background-repeat:no-repeat;
    background-color:transparent;
	background-image:url(images/tristate-check-sprite.gif);
}

*/

.x-grid3-tricheck-col-null,
.x-grid3-tricheck-col-on,
.x-grid3-tricheck-col-off,
.x-grid3-tricheck-col-question {
    width:100%;
    height:16px;
    margin-left: 5px;
    margin-right: 5px;
    background-position:left center;
    background-repeat:no-repeat;
    background-color:transparent;
	background-image:url(images/checked-null.gif);
}


.x-grid3-tricheck-col-on {
	background-image:url(images/checked-on.gif);
}

.x-grid3-tricheck-col-off {
	background-image:url(images/checked-off.gif);
}

.x-grid3-check-col-null,
.x-grid3-check-col-on {
    width:100%;
    height:16px;
    background-position: center center;
    background-repeat:no-repeat;
    background-color:transparent;
	background-image:url(images/checked-null.gif);
}


.x-grid3-check-col-on {
	background-image:url(images/checked-on.gif);
}

.x-grid3-tricheck-col-question {
    background-image:url(images/checkbox-question.png);
}