function open_select(e,id,pos_y){
	
	obj=document.getElementById(id);
	mouse_y = document.all ? e.clientY + document.body.scrollTop: e.pageY-self.pageYOffset;
	
	if (self.innerHeight){
		win_height = self.innerHeight;
	}
	else if (document.documentElement && document.documentElement.clientHeight){
		win_height = document.documentElement.clientHeight;
	}
	else if (document.body){
		win_height = document.body.clientHeight;
	}
	
	obj.style.top=pos_y+'px'; 
	if((mouse_y+116)>win_height){
		obj.style.top=(pos_y-139)+'px'; 
	}	
	obj.style.display='inline'; 
	
	//im IE Focus auf DIV legen
	if(document.all){ 
		obj.focus();
	}
	document.getElementById("shutter").style.display="inline";
	
	
}
function close_select(side){
	if(side=="works"){

	document.getElementById('branchen').style.display='none'; 
	document.getElementById('projekt').style.display='none';
	document.getElementById('kunden').style.display='none'; 
	document.getElementById('datum').style.display='none'; 
	}
	if(side=="news"){
	document.getElementById('datum').style.display='none'; 
	document.getElementById('kategorie').style.display='none';
	}
	document.getElementById("shutter").style.display="none";
}