function changeSkd(mod){
	switch(mod){
	case 'off':
		document["skl"].src = skl[0];
		document["skw"].src = skw[0];
		document["skh"].src = skh[0];
		break;
	case 'all':
		document["skl"].src = skl[1];
		document["skw"].src = skw[1];
		document["skh"].src = skh[4];
		break;
	case 'lbucket':
		document["skl"].src = skl[1];
		document["skw"].src = skw[0];
		document["skh"].src = skh[0];
		break;
	case 'lunit':
		document["skl"].src = skl[2];
		document["skw"].src = skw[0];
		document["skh"].src = skh[0];
		break;
	case 'lwheelbase':
		document["skl"].src = skl[3];
		document["skw"].src = skw[0];
		document["skh"].src = skh[0];
		break;
	case 'hcab':
		document["skl"].src = skl[0];
		document["skw"].src = skw[0];
		document["skh"].src = skh[1];
		break;
	case 'hground':
		document["skl"].src = skl[0];
		document["skw"].src = skw[0];
		document["skh"].src = skh[2];
		break;
	case 'hmax':
		document["skl"].src = skl[0];
		document["skw"].src = skw[0];
		document["skh"].src = skh[3];
		break;
	case 'hpin':
		document["skl"].src = skl[0];
		document["skw"].src = skw[0];
		document["skh"].src = skh[4];
		break;
	case 'wtotal':
		document["skl"].src = skl[0];
		document["skw"].src = skw[1];
		document["skh"].src = skh[0];
		break;
	}
}
var skh = new Array();
skh[0] = 'http://www.diggerdata.com/images/general/skidsteer_height_off.gif';
skh[1] = 'http://www.diggerdata.com/images/general/skidsteer_height_cab.gif';
skh[2] = 'http://www.diggerdata.com/images/general/skidsteer_height_ground.gif';
skh[3] = 'http://www.diggerdata.com/images/general/skidsteer_height_max.gif';
skh[4] = 'http://www.diggerdata.com/images/general/skidsteer_height_pin.gif';

var skl = new Array();
skl[0] = 'http://www.diggerdata.com/images/general/skidsteer_length_off.gif';
skl[1] = 'http://www.diggerdata.com/images/general/skidsteer_length_bucket.gif';
skl[2] = 'http://www.diggerdata.com/images/general/skidsteer_length_unit.gif';
skl[3] = 'http://www.diggerdata.com/images/general/skidsteer_length_wheelbase.gif';

var skw = new Array();
skw[0] = 'http://www.diggerdata.com/images/general/skidsteer_width_off.gif';
skw[1] = 'http://www.diggerdata.com/images/general/skidsteer_width_total.gif';