// ******************* [gradient] code ******************* //
// 1001 Astuces Nam@ni , la Source JavaScript!!
// http://www.namani.net
function gradient_gradient_browser() {
gradient_browser = "unknown";
gradient_version = 0;
if (navigator.userAgent.indexOf("Opera") >= 0)
gradient_browser = "opera";
else if (navigator.userAgent.indexOf("obot") >= 0)
gradient_browser = "robot";
else if (navigator.appName.indexOf("etscape") >= 0)
gradient_browser = "netscape";
else if (navigator.appName.indexOf("icrosoft") >= 0)
gradient_browser = "msie";
gradient_version = parseFloat(navigator.appVersion);
if (isNaN(gradient_version)) gradient_version = 0;
if ((gradient_browser == "msie")&&(gradient_version == 2)) gradient_version = 3;
gradient_tohex = new Array(256);
var hex = "0123456789ABCDEF";
var count = 0;
for (var x=0; x<16; x++) {
for (var y=0; y<16; y++) {
gradient_tohex[count] = hex.charAt(x) + hex.charAt(y);
count++;
}
}
}
function ColorCode(hexcode) {
if (hexcode.length == 7) {
this.gradient_r = parseInt(hexcode.substring(1,3),16);
this.gradient_g = parseInt(hexcode.substring(3,5),16);
this.gradient_b = parseInt(hexcode.substring(5,7),16);
}
else if (hexcode.length == 6) {
this.gradient_r = parseInt(hexcode.substring(0,2),16);
this.gradient_g = parseInt(hexcode.substring(2,4),16);
this.gradient_b = parseInt(hexcode.substring(4,6),16);
}
else {
this.gradient_r = this.gradient_g = this.gradient_b = 0;
}
}
function ColorList(hexcodes) {
var i = 0;
var c = 0;
this.gradient_codes = new Array(Math.round(hexcodes.length/7));
while (i < hexcodes.length) {
if (isNaN(parseInt(hexcodes.substring(i,i+6),16))) ++i;
else {
this.gradient_codes[c] = new ColorCode(hexcodes.substring(i,i+6));
i += 7;
++c;
}
}
this.len = c;
}
function interpolate (x1, y1, x3, y3, x2) {
if (x3 == x1) return y1
else return (x2-x1)*(y3-y1)/(x3-x1) + y1
}
function lowcolorindex (x, y, z) {
if (y == 1) return 0
else return Math.floor( (x*(z-1))/(y-1) )
}
function hicolorindex (x, y, z, low) {
if ( low*(y-1) == x*(z-1) ) return low
else if (y == 1) return 0
else return Math.floor( (x*(z-1))/(y-1) + 1 )
}
function drawGradient() {
var found = 0;
var d = document.getElementsByTagName("DIV");
for (var i = d.length - 1; i >= 0; i--) {
if (d[i].id == "mygradient") {
d[i].id = "";
div = d[i];
found = 1;
break;
}
}
if (found == 0) return;
clr = div.tag
clr = clr.replace(/\#/g, "");
clr = clr.replace(/[ ]+/g, " ");
clr += " ";
clr = clr.split(" ");
gradient_gradient_browser();
gradient_thecolors = "#" + clr[0].substr(0,6);
gradient_thecolors += "#" + clr[1].substr(0,6);
gradient_thecolors += "#" + clr[2].substr(0,6);
gradient_thecolors += "#" + clr[3].substr(0,6);
gradient_thecolors += "#" + clr[4].substr(0,6);
var gradient_html = "";
if (((gradient_browser == "netscape")||(gradient_browser == "msie")||(gradient_browser == "opera"))&&(gradient_version>=3.0)) {
var colors = new ColorList(gradient_thecolors);
if (colors.len < 2) {
div.style.display = "block";
return;
}
var numcolors = colors.len;
var numchars = div.innerText.replace(/[\n\r\t ]/g, "").length;
var rr = 0;
var gg = 0;
var bb = 0;
var lci = 0; //lower color index
var hci = 0; //high color index
var chr, p = 0;
for (i = 0; p < numchars; ++i) {
chr = div.innerText.charAt(i);
if (" \r\n\t".indexOf(chr) != -1) {
gradient_html += chr;
} else {
lci = lowcolorindex(p, numchars, numcolors);
hci = hicolorindex(p, numchars, numcolors, lci);
rr = Math.round(interpolate( lci/(numcolors-1), colors.gradient_codes[lci].gradient_r, hci/(numcolors-1), colors.gradient_codes[hci].gradient_r, p/(numchars-1)));
gg = Math.round(interpolate( lci/(numcolors-1), colors.gradient_codes[lci].gradient_g, hci/(numcolors-1), colors.gradient_codes[hci].gradient_g, p/(numchars-1)));
bb = Math.round(interpolate( lci/(numcolors-1), colors.gradient_codes[lci].gradient_b, hci/(numcolors-1), colors.gradient_codes[hci].gradient_b, p/(numchars-1)));
if (gradient_browser == "opera") {
rr = 255 - rr;
gg = 255 - gg;
bb = 255 - bb;
}
gradient_html += chr.fontcolor(gradient_tohex[rr]+gradient_tohex[gg]+gradient_tohex[bb]);
p++;
}
}
} else
gradient_html += div.innerText;
div.innerHTML = gradient_html.replace(/\r/gi, "
");
gradient_html = "";
div.style.display = "block";
}
// *********** [/gradient] code *********** //
document.write('