function setActiveStyleSheet(title) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) a.disabled = false;
    }
  }
}


var DHTML = (document.getElementById || document.all || document.layers);

function getObj(name)	{
	  if (document.getElementById)	{    	// DOM level 1 browsers: IE 5+, NN 6+
	  	this.obj = document.getElementById(name);
		this.style = document.getElementById(name).style;
	  }
	  else if (document.all)	{  			// IE 4
		this.obj = document.all[name];
		this.style = document.all[name].style;
	  }
	  else if (document.layers)  { 			// NN 4
	   	this.obj = document.layers[name];
	   	this.style = document.layers[name];
	  }
}


function showDiv(divToModify) {
	  if (DHTML){
	        var displayedDiv = new getObj(divToModify);
	        displayedDiv.style.visibility = 'visible';
	  }

          return;		
}


function hideDiv(divToModify) {
	  if (DHTML){
	        var hiddenDiv = new getObj(divToModify);
	        hiddenDiv.style.visibility = 'hidden';
	  }

          return;
		
}