11、背景调色板代码

11、背景调色板代码

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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