دوست عزیزشما برای نمونه میتونید اینجا (http://pacifist.comuv.com/) هم کدراببینید
من برای تغییررنگ بک گرانداستفاده کردم کافیه شماباcssبرای هرکجاازصفحه ات استفاده کنی اگه داخل تگ headنگاه بیاندازی با5تامعرف cssمواجه میشی
<head>
<link href="css/gray.css" title="gray" rel="stylesheet" type="text/css" />
<link href="css/aqua.css" title="aqua" rel="alternate stylesheet" type="text/css" />
<link href="css/green.css" title="green" rel="alternate stylesheet" type="text/css" />
<link href="css/olive.css" title="olive" rel="alternate stylesheet" type="text/css" />
<link href="css/purple.css" title="purple" rel="alternate stylesheet" type="text/css" />
<script src="java.js" type="text/javascript"></script>
</head>
ویک صفحه جاوااسکریپت ودرداخل bodyتگ
<div id="Wrapper">
<a onclick="chooseStyle('gray',60);return false;"><img src="img/1.jpg" alt="gray" title="gray" /></a>
<a onclick="chooseStyle('aqua',60);return false;"><img src="img/2.jpg" alt="aqua" title="aqua" /></a>
<a onclick="chooseStyle('green',60);return false;"><img src="img/3.jpg" alt="green" title="green" /></a>
<a onclick="chooseStyle('purple',60);return false;"><img src="img/4.jpg" alt="purple" title="purple" /></a>
<a onclick="chooseStyle('olive',60);return false;"><img src="img/5.jpg" alt="olive" title="olive" /></a>
</div>
کلیک کردن برروی تصویررنگهاشما رابه صفحه css متعلق به همان رنگ ارجاع میده که براش تعریف کردی که ازچه تابعی استفاده کنه که من برای پس زمینه استفاده کردم مثل:
body{
margin: auto;
text-align:left;
background-color: #1a1a1a;
}
شما بجایbody هرکجا ازصفحه راخواستی میتونی بهش معرفی کنی برای اینکه صفحه مجددلود نشه وفقط رنگ صفحه تغییر پیداکنه ازیه تکه جاوا اسکریپت استفاده شده که فقط رنگ مورد نظرماراتغییربده این هم کد
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(d ays)) : expireDate.setDate(expireDate.getDate()-5)
document.cookie = name+"="+value+"; expires="+expireDate.toGMTString()+"; path=/";
}
function deleteCookie(name){
setCookie(name, "moot")
}
function setStylesheet(title, randomize){ //Main stylesheet switcher function. Second parameter if defined causes a random alternate stylesheet (including none) to be enabled
var i, cacheobj, altsheets=[""]
for(i=0; (cacheobj=document.getElementsByTagName("link")[i]); i++) {
if(cacheobj.getAttribute("rel").toLowerCase()=="alternate stylesheet" && cacheobj.getAttribute("title")) { //if this is an alternate stylesheet with title
cacheobj.disabled = true
altsheets.push(cacheobj) //store reference to alt stylesheets inside array
if(cacheobj.getAttribute("title") == title) //enable alternate stylesheet with title that matches parameter
cacheobj.disabled = false //enable chosen style sheet
}
}
if (typeof randomize!="undefined"){ //if second paramter is defined, randomly enable an alt style sheet (includes non)
var randomnumber=Math.floor(Math.random()*altsheets.le ngth)
altsheets[randomnumber].disabled=false
}
return (typeof randomize!="undefined" && altsheets[randomnumber]!="")? altsheets[randomnumber].getAttribute("title") : "" //if in "random" mode, return "title" of randomly enabled alt stylesheet
}
function chooseStyle(styletitle, days){ //Interface function to switch style sheets plus save "title" attr of selected stylesheet to cookie
if (document.getElementById){
setStylesheet(styletitle)
setCookie("mysheet", styletitle, days)
}
}
function indicateSelected(element){ //Optional function that shows which style sheet is currently selected within group of radio buttons or select menu
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 (var 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
}
}
}
}
if (manual_or_random=="manual"){ //IF MANUAL MODE
var selectedtitle=getCookie("mysheet")
if (document.getElementById && selectedtitle!=null) //load user chosen style sheet from cookie if there is one stored
setStylesheet(selectedtitle)
}
else if (manual_or_random=="random"){ //IF AUTO RANDOM MODE
if (randomsetting=="eachtime")
setStylesheet("", "random")
else if (randomsetting=="sessiononly"){ //if "sessiononly" setting
if (getCookie("mysheet_s")==null) //if "mysheet_s" session cookie is empty
document.cookie="mysheet_s="+setStylesheet("", "random")+"; path=/" //activate random alt stylesheet while remembering its "title" value
else
setStylesheet(getCookie("mysheet_s")) //just activate random alt stylesheet stored in cookie
}
else if (randomsetting.search(/^[1-9]+ days/i)!=-1){ //if "x days" setting
if (getCookie("mysheet_r")==null || parseInt(getCookie("mysheet_r_days"))!=parseInt(randomsetting)){ //if "mysheet_r" cookie is empty or admin has changed number of days to persist in "x days" variable
setCookie("mysheet_r", setStylesheet("", "random"), parseInt(randomsetting)) //activate random alt stylesheet while remembering its "title" value
setCookie("mysheet_r_days", randomsetting, parseInt(randomsetting)) //Also remember the number of days to persist per the "x days" variable
}
else
setStylesheet(getCookie("mysheet_r")) //just activate random alt stylesheet stored in cookie
}
}