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document.getElementById("header").style.backgroundColor= "#ccc";
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document.getElementById("header").style.styleFloat = "left";
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document.getElementById("header").style.cssFloat = "left";
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var myObject = document.getElementById("header");
var myStyle = myObject.currentStyle.backgroundColor;
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var myObject = document.getElementById("header");
var myComputedStyle = document.defaultView.getComputedStyle(myObject, null);
var myStyle = myComputedStyle.backgroundColor;
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var myObject = document.getElementById("header");
var myAttribute = myObject.getAttribute("className");
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var myObject = document.getElementById("header");
var myAttribute = myObject.getAttribute("class");
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