What are you trying to do?
Places a symbol in the Market Watch window if it is not already there.
gives a pop-up alert showing the chart symbol
The symbol in the 2 pieces of code are not related to each other
Then there is something wrong with your code.
Post your code and somebody may be able to help you.
No, unless eurusd is the name of a string variable.
Symbol must be a string ie "eurusd "