//browser

var arVersion = navigator.appVersion.split("MSIE");
var version = parseFloat(arVersion[1]);

function is_integer(value)
{
	for (i=0;i<value.length;i++)
	{
		if (value[i]<'0' || value[i]>'9')
		{
			return false;
		}
	}
	return true;
}

//menu

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