function swapDiv(opt){
	
	if(opt==1){
		document.getElementById('featuresBox').className='active';
		document.getElementById('specsBox').className=' ';
		document.getElementById('reviewsBox').className=' ';
		document.getElementById('featuresBoxDtl').style.display='block';
		document.getElementById('specsBoxDtl').style.display='none';
		document.getElementById('reviewsBoxDtl').style.display='none';
	}
	else if(opt==2){
		document.getElementById('featuresBox').className=' ';
		document.getElementById('specsBox').className='active';
		document.getElementById('reviewsBox').className=' ';
		document.getElementById('featuresBoxDtl').style.display='none';
		document.getElementById('specsBoxDtl').style.display='block';
		document.getElementById('reviewsBoxDtl').style.display='none';
	}
	else if(opt==3){
		document.getElementById('featuresBox').className=' ';
		document.getElementById('specsBox').className=' ';
		document.getElementById('reviewsBox').className='active';
		document.getElementById('featuresBoxDtl').style.display='none';
		document.getElementById('specsBoxDtl').style.display='none';
		document.getElementById('reviewsBoxDtl').style.display='block';
	}
	
}