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if(document.images){
b1off=new Image(); b1off.src="images/profile.gif";
b1on=new Image(); b1on.src="images/profileon.gif";
b2off=new Image(); b2off.src="images/services.gif";
b2on=new Image(); b2on.src="images/serviceson.gif";
b3off=new Image(); b3off.src="images/portfolio.gif";
b3on=new Image(); b3on.src="images/portfolioon.gif";
b4off=new Image(); b4off.src="images/contactus.gif";
b4on=new Image(); b4on.src="images/contactuson.gif";
b5off=new Image(); b5off.src="images/indiasite.gif";
b5on=new Image(); b5on.src="images/indiasiteon.gif";
}

function enable(bn){
	if(document.images){
		loc = "b" + bn;
		document[loc].src = eval(loc + "on.src");
	}
}
function disable(bn){
	if(document.images){
		loc = "b" + bn;
		document[loc].src = eval(loc + "off.src");
	}
}
 //-->