function select_box_change(){
	if(document.getElementById('select_box').style.display == 'none'){
		document.getElementById('select_box').style.zIndex=10;
		document.getElementById('select_box').style.display='';
	}else{
		document.getElementById('select_box').style.display = 'block';
	}
}
function select_box_click(v){
	if(navigator.appName.indexOf("Explorer") > -1){
		document.getElementById('select_box_value').innerText = v;
	}else{
		document.getElementById('select_box_value').textContent = v;
	}

	document.getElementById('select_box').style.display='none';
}

function hidden_select(id){
		if(document.getElementById(id).style.display == 'block'){
			document.getElementById(id).style.display='none';
		}else if(document.getElementById(id).style.display == ''){
			document.getElementById(id).style.display='block';
		}
		
}