Terminate job in probation period

Dear friends
Can i terminate the current job because i find another more better job than the current job in probation period? if i terminate the job will the current employer have right to blocked my visa? If i terminate the current job what should i do as i have already received the another job offer?
Can you please suggest me that terminating the job in probation period need any reason to leave current job or i can terminate job with simply 24hrs notice period?

We have had a few discussions already on these threads:

http://www.expat.com/forum/viewtopic.php?id=757775

http://www.expat.com/forum/viewtopic.php?id=743397

Go through these and if you have specific questions afterwards, you can ask.

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