Variable conflict

In Flash CS4 I created these input fields, all were assigned a variable, but when I play the movie, I get the followint error message:

Left side of assignment operator must be variable or property.

This is the script I am using. Can you please advise what I am doing wrong?

function formcheck () {
validate ();
trace(a);
if (q1 = “” or q2 = “” or q3 = “” or q4 = “” or q5 = “” or fname = “” or telno eq “” or comments eq “” or from eq “”) {
stop();
error = “You have left blank fields, please fill in all fields, thank you”;
} else {
emailcheck ();
}
}
Thanks in advance,
George Carlile