var temp;
function abrediv(id){	

	if(temp != undefined){

		if( document.getElementById("div_"+id).style.display=='none'){
			document.getElementById("div_"+id).style.display = '';
			temp = id;
		}else{
			document.getElementById("div_"+id).style.display = 'none';
			temp = id;
		}
	}
	else{
		document.getElementById("div_"+id).style.display = '';
		temp = id;
	}
}