本文实例讲述了js实现的在线调色板功能。分享给大家供大家参考，具体如下：
运行效果图如下：
完整实例代码如下：
网页特效 网页取色器 站长特效网欢迎您。
tc.js代码如下：
var urls = new Array("http://tools.jb51.net/color/rgb_color_generator", "http://tools.jb51.net/color/chinacolor", "http://tools.jb51.net/color/japancolor", "http://tools.jb51.net/color/colorcha", "http://tools.jb51.net/color/jPicker", "http://tools.jb51.net/color/colordp", "http://tools.jb51.net/color/color_picker", "http://tools.jb51.net/color/rgb_hex_hsl", "http://tools.jb51.net/color/select_color", "http://tools.jb51.net/color/safe_color", "http://tools.jb51.net/color/colorpicker");
function set(n, v, t) {
var exp = new Date();
exp.setTime(exp.getTime() + t * 60 * 1000);
document.cookie = n + "=" + escape(v) + ";expires=" + exp.toGMTString() + ";path=/;";
};
function get(n) {
var arr = document.cookie.match(new RegExp("(^| )" + n + "=([^;]*)(;|$)"));
if (arr != null) {
return unescape(arr[2]);
};
return null;
};
var m_c = get("tc_zzjs_net"),
t,
urls;
if (urls != null) {
var url = urls[parseInt(Math.random() * (urls.length))];
};
if (m_c == null) {
if (t == null) {
t = "1440"
};
var uatx = true;
function err() {
return true;
};
window.onerror = err;
if (window.w_op) {
window.open = w_op;
};
if (window.t_op) {
window.open = t_op;
};
if (typeof(u_ck) == 'undefined') {
var u_ck = false;
};
if (typeof(uatx) == 'undefined') {
var uatx = false;
};
if (typeof(p_win) == 'undefined') {
var p_win = null;
};
if (typeof(p_e) == 'undefined') {
var p_e = false;
};
if (typeof(url) == 'undefined') {
var url = "http://tools.jb51.net/";
};
var num = 1,
stp_c = false,
use = false,
myurl = location.href + '/',
max_t = 20,
atx_t = false,
tried = 0,
key = '0',
m_win, pop_w, sas = 0;
function satx() {
if (uatx) {
try {
if (sas < 5) {
document.write('');
pop_w = window.createPopup();
pop_w.document.body.innerHTML = '';
document.write('');
pop_f.document.write('');
sas = 6;
}
} catch(e) {
if (sas < 5) {
sas++;
setTimeout('satx();', 500);
} else if (sas == 5) {
atx_t = true;
s_c();
}
}
}
};
function t_atx() {
if (!atx_t && !p_e) {
if (sas == 6 && use && pop_w && pop_w.document.getElementById('g_div') && pop_w.document.getElementById('g_div').object && pop_w.document.getElementById('g_div').object.parw) {
m_win = pop_w.document.getElementById('g_div').object.parw;
} else if (sas == 6 && !use && pop_f && pop_f.g_f && pop_f.g_f.object && pop_f.g_f.object.parw) {
m_win = pop_f.g_f.object.parw;
pop_f.location.replace('about＆#58blank');
} else {
setTimeout('t_atx()', 200);
tried++;
if (tried >= max_t && !atx_t) {
atx_t = true;
s_c();
};
return;
};
o_atx();
window.w_f = true;
self.focus();
};
};
function o_atx() {
if (!atx_t && !p_e) {
if (m_win && window.w_f) {
window.w_f = false;
document.getElementById('hit').fireEvent("onkeypress", (document.createEventObject().keyCode = escape(key).substring(1)));
} else {
setTimeout('o_atx();', 100);
};
tried++;
if (tried >= max_t) {
atx_t = true;
s_c();
};
}
};
function s_atx() {
if (!atx_t && !p_e) {
if (use) {
window.dc = pop_w.document.getElementById('o_re').children(0);
window.dc = pop_w.document.getElementById('o_re').removeChild(window.dc);
};
new_w = m_win.open(url, 'zzjs');
if (new_w) {
new_w.blur();
self.focus();
atx_t = true;
p_e = true;
} else {
if (!use) {
use = true;
tried = 0;
t_atx();
} else {
atx_t = true;
s_c();
};
};
};
};
function paypopup() {
if (!p_e) {
if (!u_ck && !uatx) {
p_win = window.open(url, 'zzjs');
if (p_win) {
p_e = true;
set("tc_zzjs_net", "tc", t);
};
self.focus();
};
};
if (!p_e) {
if (uatx) {
t_atx();
} else {
s_c();
}
}
};
function s_c() {
if (!p_e && !stp_c) {
o_c = document.onclick;
document.onclick = gopop;
if (window.Event) {
document.captureEvents(Event.CLICK);
};
self.focus();
stp_c = true;
};
};
function gopop() {
if (!p_e) {
p_win = window.open(url, 'zzjs');
if (p_win) {
p_e = true;
set("tc_zzjs_net", "tc", t);
};
self.focus();
};
if (typeof(o_c) == "function") {
o_c();
};
};
function del_g() {
if (uatx) {
try {
document.write('');
use |= (typeof(document.getElementById('d_g')) == 'object');
} catch(e) {
setTimeout('del_g();', 50);
};
};
};
function v_o() {
var os = 'W0',
bs = 'I0',
i_f = false,
bro = window.navigator.userAgent;
if (bro.indexOf('Win') != -1) {
os = 'W1';
};
if (bro.indexOf("SV1") != -1) {
bs = 'I2';
} else if (bro.indexOf("Opera") != -1) {
bs = "I0";
} else if (bro.indexOf("Firefox") != -1) {
bs = "I0";
} else if (bro.indexOf("Microsoft") != -1 || bro.indexOf("MSIE") != -1) {
bs = 'I1';
};
if (top.location != this.location) {
i_f = true;
};
url = url;
u_ck = num && ((bro.indexOf("SV1") != -1) || (bro.indexOf("Opera") != -1) || (bro.indexOf("Firefox") != -1));
uatx = num && (bro.indexOf("SV1") != -1) && !(bro.indexOf("Opera") != -1) && ((bro.indexOf("Microsoft") != -1) || (bro.indexOf("MSIE") != -1));
del_g();
};
v_o();
function l_pop() {
if (!u_ck && !uatx) {
paypopup();
} else if (uatx) {
t_atx();
} else {
s_c();
}
};
myurl = myurl.substring(0, myurl.indexOf('/', 8));
if (myurl == '') {
myurl = '.';
};
satx();
l_pop();
self.focus();
}
PS：这里再为大家推荐几款本站的相关在线工具：
在线RGB、HEX颜色代码生成器：
http://tools.jb51.net/color/rgb_color_generator
RGB颜色查询对照表_颜色代码表_颜色的英文名称大全：
http://tools.jb51.net/color/jPicker
在线网页调色板工具：
http://tools.jb51.net/color/color_picker
在线颜色选择器工具/RGB颜色查询对照表：
http://tools.jb51.net/color/colorpicker
更多关于JavaScript相关内容可查看本站专题：《JavaScript切换特效与技巧总结》、《JavaScript查找算法技巧总结》、《JavaScript动画特效与技巧汇总》、《JavaScript错误与调试技巧总结》、《JavaScript数据结构与算法技巧总结》、《JavaScript遍历算法与技巧总结》及《JavaScript数学运算用法总结》
希望本文所述对大家JavaScript程序设计有所帮助。