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var kep1_on=new Image; 
kep1_on.src="pic/on/05.jpg";

var kep1_off=new Image; 
kep1_off.src="pic/off/05.jpg";

var kep2_on=new Image; 
kep2_on.src="pic/on/03.jpg";

var kep2_off=new Image; 
kep2_off.src="pic/off/03.jpg";

function enableDropdownMenuForIE()
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