Casey Anthony's mother Cindy took the witness stand on Thursday (Day 26), admitting that she was the one who had googled the word chloroform and some other words on the computer in Anthony's family in March 2008.

Cindy said she was the one who had researched chloroform at that time. Because her puppy had been eating bamboo leaves, she wanted to research chlorophyll for the dog. But the search led her to reach chloroform, for some kinds of chlorophyll can produce chloroform.

The testimony is so shocking that the prosecutor Linda Drane Burdick never believed it. She challenged that the record showed that Cindy was at the work during the alleged time of Internet searches in March 2008.

Cindy explained that her work record are often different from the truth. We were not supposed to report overtime, so sometimes we'd only work a half day to make up for longer hours, she said.

However, when the prosecutor asked her, Did you input the words 'how to make chloroform' into a google search on March 21? Cindy denied that.

A computer forensics expert gave the testimony that those words had been typed into the computer only after a MySpace entry. Cindy said she didn't have MySpace account at that time.

When asked if she visited the website related with the chloroform 84 times, Cindy said, “I didn’t do 84 searches for anything.”

According to Cindy, Casey and her daughter Caylee lived with them. And the computer in Anthony's family was almost always on. The Anthony family and Casey's friends could reach the computer easily. Cindy said she often used it after Casey.

The prosecution experts also found some words such as self-defense, neck-breaking, and shovel, that were searched on the Internet. Cindy said she didn't google those topics.

Cindy said on March 17, she had searched for the word inhalation, because she had received an email her friend had forwarded, which was about the danger of a child ingesting or inhaling household items.

I searched for alcohol, acetone, peroxide and other household chemicals because I wanted to know about things Caylee might get hold of in the house, Cindy said.

Moreover, Cindy recalled that she searched for the words internal bleeding and chest injuries, for one of her friend had an accident.

And when defense attorney Jose Baez asked Kevin Stenger, a computer forensics expert, Stenger admitted that he had used two different programs to investigate the deleted Internet history data from the computer in Anthony's family.

Nevertheless, two entirely different reports came out with two programs: One showed that a website related to chloroform was visited once on March 21, while the other showed that the website was visited as many as 84 times.

Except computer history, Cindy also testified that the trunk liner in Casey's car was already stained when they bought this second-hand car in Orlando.

Casey Anthony's trial is in its fifth week.

About Casey Anthony Trial

Two-year old Caylee was last seen alive on June 16 and it was only on July 15 that she was reported missing by her mother Casey Anthony to the police. Cindy, Casey's mother had also alerted the police by calling a 911 dispatcher and saying that she had smelled a dead body in the trunk of Casey's car that was spotted in an impound lot. The car was later towed by authorities for forensic analysis.

Initially, Casey told the police that a babysitter called Zenaida Fernandez-Gonzalez (Zanny the nanny) had abducted Caylee. Investigations showed Casey was lying as the babysitter Zanny was fictitious. Five months later, in December 2008, Caylee's decomposed skeletal remains were found in a wooded area near the Anthony home by a meter reader who was relieving himself.

The prosecutors say Casey chloroformed Caylee and then put duct tape over her nose and mouth, suffocating the girl.

Casey's lawyers claim Caylee was not murdered. They say the toddler accidentally drowned in the family swimming pool and George, Casey's father, helped her keep the death a secret. George has denied the claim.

Casey has been charged with seven counts, including first degree murder, aggravated child abuse and misleading the police in the death of Caylee. If she is convicted of first degree, she could be sentenced to death by the seven-woman, five-man jury. The trial is expected to take another 2-3 weeks before a verdict is reached.