function dsp(loc){
   if(document.getElementById){
      var foc=loc.firstChild;
      foc=loc.firstChild.innerHTML?
         loc.firstChild:
         loc.firstChild.nextSibling;
      foc.innerHTML=foc.innerHTML=='+'?'-':'+';
      foc=loc.parentNode.nextSibling.style?
         loc.parentNode.nextSibling:
         loc.parentNode.nextSibling.nextSibling;
      foc.style.display=foc.style.display=='block'?'none':'block';}}  

if(!document.getElementById)
   document.write('<style type="text/css"><!--\n'+
      '.dspcont{display:block;}\n'+
      '//--></style>');
function showChoice(choice){ 
  var divTag = "div";
  var spanTag = "span";
  if (document.getElementById) { 
    var totalDivs = document.getElementsByTagName(divTag);
    var totalSpans = document.getElementsByTagName(spanTag);
    for (var i=0; i<totalDivs.length; i++){
			if (totalDivs[i].className=='dspcont')  {			  
			  if (choice=='expand') {
					totalDivs[i].style.display='block';
				}
				else if (choice=='collapse') {
					totalDivs[i].style.display='none'; 
			  }
			}
		}
		for (var j=0; j<totalSpans.length; j++){
			if (totalSpans[j].className=='dspchar')  {			  
			  if (choice=='expand') {
				  totalSpans[j].innerHTML='-';
				}
				else if (choice=='collapse') {
				  totalSpans[j].innerHTML='+'; 
			  }
			}		
		}
	}
}