function showhide()
{
	if(document.getElementById('div_graphs').style.display=='none'){
		document.getElementById('div_graphs').style.display='block';
		document.getElementById('div_rate_button').style.display='block';
	}else{
		document.getElementById('div_graphs').style.display='none'
		document.getElementById('div_rate_button').style.display='none'
	}

	if(document.getElementById('div_rate').style.display=='none'){
		document.getElementById('div_rate').style.display='block';
		document.getElementById('div_graph_button').style.display='block';
	}else{
		document.getElementById('div_rate').style.display='none'
		document.getElementById('div_graph_button').style.display='none'
	}
	if(document.getElementById('div_comments').style.display=='none'){
		document.getElementById('div_comments').style.display='block';
	}else{
		document.getElementById('div_comments').style.display='block'
	}
}