function switch_gal(n){
	var AgntUsr=navigator.userAgent.toLowerCase();
	Opr = AgntUsr.indexOf('opera')!=-1?1:0;
	if(Opr){	
		el1 = document.all['tablegaleria1'];
		el2 = document.all['tablegaleria2'];
		el3 = document.all['tablegaleria3'];
		el1a = document.all['galerie-buttons-1'];
		el2a = document.all['galerie-buttons-2'];
		el3a = document.all['galerie-buttons-3'];
	}else{
		el1 = document.getElementById('tablegaleria1');
		el2 = document.getElementById('tablegaleria2');
		el3 = document.getElementById('tablegaleria3');
		el1a = document.getElementById('galerie-buttons-1');
		el2a = document.getElementById('galerie-buttons-2');
		el3a = document.getElementById('galerie-buttons-3');
	}
	if(n==1){
		el1.style.display='block';
		el2.style.display='none';
		el3.style.display='none';
		el1a.style.display='block';
		el2a.style.display='none';
		el3a.style.display='none';
	}
	if(n==2){
		el1.style.display='none';
		el2.style.display='block';
		el3.style.display='none';
		el1a.style.display='none';
		el2a.style.display='block';
		el3a.style.display='none';
	}
	if(n==3){
		el1.style.display='none';
		el2.style.display='none';
		el3.style.display='block';
		el1a.style.display='none';
		el2a.style.display='none';
		el3a.style.display='block';
	}
}