function showDiv(whichDiv) 
	{
	if (document.getElementById) 
		{
		document.getElementById(whichDiv).style.visibility='visible';
		} 
	else if (document.layers && !is_omni) 
		{
		document.layers[whichDiv].visibility='visible';
		} 
	else 
		{
		alert("in showdiv all")
		document.all[whichDiv].style.visibility='visible';
		}
	}

function hideDiv(whichDiv) 
	{
	if (document.getElementById) 
		{
		document.getElementById(whichDiv).style.visibility='hidden';
		} 
	else if (document.layers && !is_omni) 
		{
		document.layers[whichDiv].visibility='hidden';
		} 
	else 
		{
		document.all[whichDiv].style.visibility='hidden';
		}
	}
	
	
	
	////////
	function smallerStyleSheet()
	{
	// get current title, if can be smaller, make it smaller
	current = getActiveStyleSheet() ;
	// alert("current: " + current) ;

	if ( current == "medium" )
		{
		setActiveStyleSheet("standard") ;
		}
	else if ( current == "large" )
		{
		setActiveStyleSheet("medium") ;
		}
	else if ( current == "large2" )
		{
		setActiveStyleSheet("large") ;
		}
	else if ( current == "large3" )
		{
		setActiveStyleSheet("large2") ;
		}
	else if ( current == "large4" )
		{
		setActiveStyleSheet("large3") ;
		}
	else if ( current == "large5" )
		{
		setActiveStyleSheet("large4") ;
		}
	else if ( current == "large6" )
		{
		setActiveStyleSheet("large5") ;
		}
	else if ( current == "large7" )
		{
		setActiveStyleSheet("large6") ;
		}
	// Can't make small sheet smaller
	}

function largerStyleSheet()
	{
	// get current title, if can be larger, make larger
	current = getActiveStyleSheet() ;
	// alert("current: " + current) ;

	if ( current == "standard" )
		{
		setActiveStyleSheet("medium") ;
		}
	else if ( current == "medium" )
		{
		setActiveStyleSheet("large") ;
		}
	else if ( current == "large" )
		{
		setActiveStyleSheet("large2") ;
		}
	else if ( current == "large2" )
		{
		setActiveStyleSheet("large3") ;
		}
	else if ( current == "large3" )
		{
		setActiveStyleSheet("large4") ;
		}
	else if ( current == "large4" )
		{
		setActiveStyleSheet("large5") ;
		}
	else if ( current == "large5" )
		{
		setActiveStyleSheet("large6") ;
		}
	else if ( current == "large6" )
		{
		setActiveStyleSheet("large7") ;
		}
	// Can't make large sheet larger
	}

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;
				}
			}
		}
	}


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

	return "standard";
	}

function getPreferredStyleSheet() 
	{
	var i, a;
	for(i=0; (a = document.getElementsByTagName("link")[i]); i++) 
		{
		if(a.getAttribute("rel").indexOf("style") != -1
		   && a.getAttribute("rel").indexOf("alt") == -1
		   && a.getAttribute("title")
		   ) 
			{ return a.getAttribute("title"); }
		}

	return null;
	}

function createCookie(name,value,days) 
	{
	if (days) 
		{
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
		} 
	else 
		{
		expires = "";
		}
	document.cookie = name+"="+value+expires+"; path=/";
	}

function readCookie(name) 
	{
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) 
		{
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
		}
	return null;
	}

window.onload = function(e) 
	{
	if (document.getElementById) 
		{
		var cookie = readCookie("style");
		var title = cookie ? cookie : getPreferredStyleSheet();
		setActiveStyleSheet(title);
		}
	}

window.onunload = function(e) 
	{
	var title = getActiveStyleSheet();
	createCookie("style", title, 365);
	}
	////////////////