Javascript to manipulate css files?
<p>Im using javascript to change the display of a object, there is a css class already for the same object : #id{display:none;}    When i use javascript to alter display to  display:block, the Display:block; appears on the object itself in the HTML. The css propertys seem to be overriding the html's propertys because it still doesnt display. 
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        prev4.onclick = function(){
    lrg.setAttribute("src", eventpic4);
    lefta.setAttribute("display", "block");
        };</p>
