function TabPageClick(oBtn){
         aNameParts = oBtn.id.split('_');
	 iBtnClickedIndex = parseInt( aNameParts[2] );         // the index of the clicked button
	 if( oBtn.className == "navUnselected" ){ return true; // already selected 
	 }

	 oBtn.className = "navUnselected";
	 
	 for(i=1;  i <= 5; i++ ){
	     if(i == iBtnClickedIndex ){  
		    document.getElementById("uiTabPageDiv_"+ aNameParts[1] +"_"+ iBtnClickedIndex).style.display="block"; // show the clicked layer
			 if(document.getElementById('CategorieBar') != null ){ 
			    document.all('LocalitaBar').style.display='block';
			 } else {document.all('LocalitaBar').style.display='none';}
			continue;
		 }
		 
		 oBtn = document.getElementById("uiTabControl_"+ aNameParts[1] +"_"+ i);
		 if(oBtn){
		    document.getElementById("uiTabPageDiv_"+ aNameParts[1] +"_"+ i).style.display="none";
		    oBtn.className = "navSelected";
		 }else{
		 	break;
		 }
	 }
}