Run random numbers from 1 to 80
Number of times to run determined by txtTimes value
Numbers will turn blue that are returned with a beep.
Numbers to be returned to black after each 80 number randomize.
Speed to determined by 3 labels label1, label3 and label4
all black speed labels is the slowest and all red being the fastest.
Clicking the labels determines the speed and label colors.
If a label is black and clicked the speed will increase and the label turns red.
If a label is red and clicked the speed will slow and the label will be black.