Nearly 40 percent of workers have flirted with workplace romance, according to a new study.

And while 41 percent think dating a coworker might hurt their chances for promotion or put them in danger of being fired, 39 percent say they would still take part, the survey by Spherion Corp. says.

Among the findings:

When asked if their workplace had a policy against dating coworkers, 53 percent said now, and just 16 percent said yes. 31 percent said they were unsure.

"Given that most of us spend at least a third of our day at work, there's plenty of opportunity to consider a workplace romance" John Heins, senior vice president and chief human resources officer at Spherion said. "Certainly, it's a company's decision whether to allow or discourage coworker dating, but the fact that nearly one-third of workers aren't sure whether their employers have such a policy is somewhat concerning."