function makevisible(cur,which){

	strength=(which==0)? 0.9 : 0.8
	if (cur.style.MozOpacity)
	cur.style.MozOpacity=strength
	else if (cur.filters)
	cur.filters.alpha.opacity=strength*100

}



function showThis(categoryStr,categoryId) {

	var category_array=categoryStr.split(',');

	var object = document.getElementById('subSite'+categoryId).style; 

	object.display='block'
	object.visibility='visible';

	lImg = document.getElementById('L_bg'+categoryId);
	rImg = document.getElementById('R_bg'+categoryId); 
	tdImg = document.getElementById('td_bg'+categoryId); 

	//lImg.src='/scid/emAveiro/images/subSitesTabLeft.gif'
	lImg.className='bottomMenuL'
	//rImg.src='/scid/emAveiro/images/subSitesTabRight.gif'
	rImg.className='bottomMenuR'
	tdImg.className='bottomMenu_1'

	for(j = 0; j < category_array.length; j++){

		id=category_array[j];

		if (id!=categoryId){

			var this_object = document.getElementById('subSite'+id).style;
			this_object.display='none';
			this_object.visibility='hidden';

			lImg = document.getElementById('L_bg'+id);
			rImg = document.getElementById('R_bg'+id); 
			tdImg = document.getElementById('td_bg'+id); 
	
			//lImg.src='/scid/emAveiro/images/subSitesTabLeft_1.gif'
			lImg.className='bottomMenuL_1'
			//rImg.src='/scid/emAveiro/images/subSitesTabRight_1.gif'
			rImg.className='bottomMenuR_1'	
			tdImg.className='bottomMenu'
		}

	}


}