function setOpacity(obj, opacity) {
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  // 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
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}


var arStrings = new Array(12);
arStrings[0] = 'Schizophrenia affects 1% of the population.';
arStrings[1] = 'Schizophrenia typically strikes between the ages of 15 and 25.';
arStrings[2] = 'Schizophrenia can be treated with medication.';
arStrings[3] = '"Schizophrenia" means "splitting of mind," but is not associated with split personality disorder.';
arStrings[4] = 'Schizophrenia impairs an individual\'s perception or expression of reality.';
arStrings[5] = 'There is no laboratory test for schizophrenia.';
arStrings[6] = 'Schizophrenia is a genetic illness.';
arStrings[7] = 'Stressful life events are often the trigger for schizophrenia.';
arStrings[8] = 'Positive symptoms of schizophrenia include auditory hallucinations and delusions.';
arStrings[9] = 'Negative symptoms of schizophrenia include loss of motivation and lack of emotion.';
arStrings[10] = 'Positive symptoms are more likely to be corrected by medication than negative symptoms.';
arStrings[11] = 'The term "schizophrenia" was coined by Eugene Bleuler in 1908.';