function $id(a){return(document.getElementById(a)?document.getElementById(a):false)}
function idExists(a){return($id(a)?true:false)}
function isDom(){return (document.getElementById&&document.getElementsByTagName&&document.createElement)?true:false}
function setOpacity(a,b){var o=$id(a).style;o.opacity=b/100;o.MozOpacity=b/100;o.KhtmlOpacity=b/100;o.filter="alpha(opacity="+b+")"}
function hyphenToCamel(s){for(var a=/-([a-z])/;a.test(s);s=s.replace(a,RegExp.$1.toUpperCase()));return s};
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if(isDom()){disjointedRollover('sectionTop','sectionTop',"overlay",".sprite")}