//Style Sheet Switcher version 1.0 Nov 9th, 2005

//Author: Dynamic Drive: http://www.dynamicdrive.com

//Usage terms: http://www.dynamicdrive.com/notice.htm



function getCookie(Name) { 

var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair

if (document.cookie.match(re)) //if cookie found

return document.cookie.match(re)[0].split("=")[1] //return its value

return null

}



function setCookie(name, value, days) {

var expireDate = new Date()

//set "expstring" to either future or past date, to set or delete cookie, respectively

var expstring=(typeof days!="undefined")? expireDate.setDate(expireDate.getDate()+parseInt(days)) : expireDate.setDate(expireDate.getDate()-5)

document.cookie = name+"="+value+"; expires="+expireDate.toGMTString()+"; path=/";

}



function deleteCookie(name){

setCookie(name, "moot")

}



function setStylesheet(title) {

var i, cacheobj

for(i=0; (cacheobj=document.getElementsByTagName("link")[i]); i++) {

if(cacheobj.getAttribute("rel").indexOf("style") != -1 && cacheobj.getAttribute("title")) {

cacheobj.disabled = true

if(cacheobj.getAttribute("title") == title)

cacheobj.disabled = false //enable chosen style sheet

}

}

}



function chooseStyle(styletitle, days){

if (document.getElementById){

setStylesheet(styletitle)

setCookie("mystyle_interface", styletitle, days)

}

}



function indicateSelected(element){ //Optional function that shows which style sheet is currently selected within group of radio buttons or select menu 

var i

if (selectedtitle!=null && (element.type==undefined || element.type=="select-one")){ //if element is a radio button or select menu

var element=(element.type=="select-one") ? element.options : element

for (i=0; i<element.length; i++){

if (element[i].value==selectedtitle){ //if match found between form element value and cookie value

if (element[i].tagName=="OPTION") //if this is a select menu

element[i].selected=true

else //else if it's a radio button

element[i].checked=true

break

}

}

}

}



var selectedtitle=getCookie("mystyle_interface")

if (document.getElementById && selectedtitle!=null) //load user chosen style sheet if there is one stored

setStylesheet(selectedtitle)