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背景色选择器
作者:晋城网站建设 日期:2010-02-15
脚本说明:
把如下代码加入<body>区域中
<script language="JavaScript">
<!--
// Copyright (c) 1996-1997 Tomer Shiran. All rights reserved.
// Permission given to use the script provided that this notice remains as is.
// Additional scripts can be found at http://www.geocities.com/~yehuda/
// create 6-element array
var hex = new Array(6)
// assign non-dithered descriptors
hex[0] = "FF"
hex[1] = "CC"
hex[2] = "99"
hex[3] = "66"
hex[4] = "33"
hex[5] = "00"
// accept triplet string and display as background color
function display(triplet) {
// set color as background color
document.bgColor = '#' + triplet
// display the color hexadecimal triplet
alert('现在的背景色是 #'+triplet)
}
// draw a single table cell based on all descriptors
function drawCell(red, green, blue) {
// open cell with specified hexadecimal triplet background color
document.write('<TD BGCOLOR="#' + red + green + blue + '">')
// open a hypertext link with javascript: scheme to call display function
document.write('<a href="javascript:display(\'' + (red + green + blue) + '\')">')
// print transparent image (use any height and width)
document.write('<IMG SRC="place.gif" BORDER=0 HEIGHT=12 WIDTH=12>')
// close link tag
document.write('</A>')
// close table cell
document.write('</TD>')
}
// draw table row based on red and blue descriptors
function drawRow(red, blue) {
// open table row
document.write('<TR>')
// loop through all non-dithered color descripters as green hex
for (var i = 0; i < 6; ++i) {
drawCell(red, hex[i], blue)
}
// close current table row
document.write('</TR>')
}
// draw table for one of six color cube panels
function drawTable(blue) {
// open table (one of six cube panels)
document.write('<TABLE CELLPADDING=0 CELLSPACING=0 BORDER=0>')
// loop through all non-dithered color descripters as red hex
for (var i = 0; i < 6; ++i) {
drawRow(hex[i], blue)
}
// close current table
document.write('</TABLE>')
}
// draw all cube panels inside table cells
function drawCube() {
// open table
document.write('<TABLE CELLPADDING=5 CELLSPACING=0 BORDER=1><TR>')
// loop through all non-dithered color descripters as blue hex
for (var i = 0; i < 6; ++i) {
// open table cell with white background color
document.write('<TD BGCOLOR="#FFFFFF">')
// call function to create cube panel with hex[i] blue hex
drawTable(hex[i])
// close current table cell
document.write('</TD>')
}
// close table row and table
document.write('</TR></TABLE>')
}
// call function to begin execution
drawCube()
// -->
</script>
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