function setOpacity(obj, opacity) {
  opacity = (opacity == 100)?99.999:opacity;
  
  // IE/Win
  obj.style.filter = "alpha(opacity:"+opacity+")";
  
  // Safari<1.2, Konqueror
  obj.style.KHTMLOpacity = opacity/100;
  
  // Older Mozilla and Firefox
  obj.style.MozOpacity = opacity/100;
  
  // Safari 1.2, newer Firefox and Mozilla, CSS3
  obj.style.opacity = opacity/100;
}


var arStrings = new Array(9);
arStrings[0] = 'There are two main types of of depression: Clinical depression or Bipolar disorder, and each illness can have mild to severe forms';
arStrings[1] = 'By the year 2020 depressive disorders are expected to rank 2nd in global diseases (after heart disease)';
arStrings[2] = 'Depression occurs twice as often in women as in men';
arStrings[3] = 'There is no single cause of major depression. Psychological, biological and environmental factors may all contribute to it.';
arStrings[4] = 'People who are depressed are four times more likely to suffer a heart attack';
arStrings[5] = 'Without treatment, the frequency of depressive illness, as well as the severity of symptoms, tends to increase over time';
arStrings[6] = 'It\'s estimated that 80% of depressed people respond well to treatment, but 90% of people who are depressed never seek treatment';
arStrings[7] = 'Depression is the leading cause of disablity and premature death in the world';
arStrings[8] = 'People who are depressed are four times more likely to suffer a heart attack';