Don't use the document title to find the instance of WYM for mousedown
Don't use the document title to find the instance of WYM for mousedown

redo 610a9e3554363a8bf6250744deba8dcf2c46174a

samuelcole/wymeditor,samuelcole/wymeditor,samuelcole/wymeditor,samuelcole/wymeditor,samuelcole/wymeditor,samuelcole/wymeditor