Q:

how to change in magento shipping method

– In my store if user buy product than shipping cost will added on the basis of the weight of the product but after the certain shipping amount let say after $100 I don’t want to add any further shipping cost to it. is this possible in magento? Please help me on this...

A:

yes there is shopping cart rule you can set
here is very good example with screen shot just go throw this link 
and also for weight dependent shipping you can set by this way or this one 
hope this will sure help you.

