Demo

NameA-headB-headC-head
NameA-footB-footC-foot
This row is within the first tbody set as an info block - it is not sorted!
DDDr1c1r1c2r1c3
AAAr2c1r2c2r2c3
CCCr3c1r3c2r3c3
BBBr4c1r4c2r4c3
summary info for the first group
Another row referring to the first group
Zorror5c1r5c2r5c3
Calebr6c1r6c2r6c3
Momor7c1r7c2r7c3
Wolfier8c1r8c2r8c3
summary info for the second group
Ulyssesr9c1r9c2r9c3
Peneloper10c1r10c2r10c3
Edvaldr11c1r11c2r11c3
Janr12c1r12c2r12c3
summary info for the last group

Javascript


	

HTML


	

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