var style_cookie_name = "style" ;
var style_cookie_duration = 30 ; 

function getCookie(c_name)
{
var i,x,y,ARRcookies=document.cookie.split(";");
for (i=0;i<ARRcookies.length;i++)
{
  x=ARRcookies[i].substr(0,ARRcookies[i].indexOf("="));
  y=ARRcookies[i].substr(ARRcookies[i].indexOf("=")+1);
  x=x.replace(/^\s+|\s+$/g,"");
  if (x==c_name)
    {
    return unescape(y);
    }
  }
}  

function switch_style ( css_title )
{
// You may use this script on your site free of charge provided
// you do not remove this notice or the URL below. Script from
// http://www.thesitewizard.com/javascripts/change-style-sheets.shtml  

	   if  (css_title == "Toggle") {

	   		var CurrCSS = getCookie("style");	
	   
			if (CurrCSS!=null && CurrCSS!="") {
			var jamtemp="";
			}
			else
			{
			CurrCSS = "Normal";
			}
   
		   if (CurrCSS == "Normal") {
		   css_title = "Larger";	
		   }
		   else if (CurrCSS == "Larger") {
		   css_title = "Largest";	
		   }
		   else if (CurrCSS == "Largest") {
		   css_title = "Normal";	 
		   }			
		   
	   }

 var i, link_tag ;	   
  for (i = 0, link_tag = document.getElementsByTagName("link") ;
    i < link_tag.length ; i++ ) {	 
    if ((link_tag[i].rel.indexOf( "stylesheet" ) != -1) &&
      link_tag[i].title) {
      link_tag[i].disabled = true ;
      if (link_tag[i].title == css_title) {
        link_tag[i].disabled = false ;
      }
    }			  
    set_cookie( style_cookie_name, css_title,
      style_cookie_duration );
  }
} 


function set_cookie ( cookie_name, cookie_value, lifespan_in_days, valid_domain )
{
    // http://www.thesitewizard.com/javascripts/cookies.shtml 
	
	var exdate=new Date();
	exdate.setDate(exdate.getDate() + lifespan_in_days);

    var domain_string = valid_domain ?
                       ("; domain=" + valid_domain) : '' ;
    document.cookie = cookie_name +
                       "=" + encodeURIComponent( cookie_value ) +
                       "; expires=" + exdate.toUTCString() +
                       "; path=/" + domain_string ;
}