Hide line "Search for" in genericsearch.jsp

Hello E-Commerce developers,

I have to develop a customer specific requirement:

By click on "My Transactions" in the Top-Navigationbar should the first row in genericsearch.jsp ("Search for") be hidden/dark.

The search criteria for "Search for" has to be "Orders".

"My Transactions" will be renamed in "Orders".

How can I make the first row "Search for" invisible?

I also need to make another link in the Top-Navigationbar near to "Orders" which will be called "Order Templates". Here it is the same procedure as described above:

Clicking "Order Templates" the genericsearch.jsp should be visible without row "Search For" (hidden) but with initial search value "Order Templates".

Hope somebody can help me how I must procede.

Best regards,

Natali