function over(i){
	document.getElementById(i).style.visibility = 'visible';
}
function out(i){
	document.getElementById(i).style.visibility = 'hidden';
}

function big(i, x){
      if(document.getElementById(i).style.width == '600px') {
      	document.getElementById(i).style.width = '150px';
      } else {
      	document.getElementById(i).style.width = '600px';
      }
}





function toggleSpan(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';
      }
}