看看这段你能用上不?
<html><head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<meta name="GENERATOR" content="Microsoft FrontPage 4.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<title>链接效果</title>
<script>
var rate = 20;
var obj;
var act = 0;
var elmH = 0;
var elmS = 128;
var elmV = 255;
var clrOrg;
var TimerID;
if (navigator.appName.indexOf("Microsoft",0) != -1 && parseInt(navigator.appVersion) >= 4) {
Browser = true;
} else {
Browser = false;
}if (Browser) {
document.onmouseover = doRainbowAnchor;
document.onmouseout = stopRainbowAnchor;
}
function doRainbow()
{
if (Browser && act != 1) {
act = 1;
obj = event.srcElement;
clrOrg = obj.style.color;
TimerID = setInterval("ChangeColor()",100);
}
}function stopRainbow()
{
if (Browser && act != 0) {
obj.style.color = clrOrg;
clearInterval(TimerID);
act = 0;
}
}
function doRainbowAnchor()
{
if (Browser && act != 1) {
obj = event.srcElement; while (obj.tagName != 'A' && obj.tagName != 'BODY') {
obj = obj.parentElement;
if (obj.tagName == 'A' || obj.tagName == 'BODY')
break;
} if (obj.tagName == 'A' && obj.href != '') {
act = 1;
clrOrg = obj.style.color;
TimerID = setInterval("ChangeColor()",100);
}
}
}
function stopRainbowAnchor()
{
if (Browser && act != 0) {
if (obj.tagName == 'A') {
obj.style.color = clrOrg;
clearInterval(TimerID);
act = 0;
}
}
}
function ChangeColor()
{
obj.style.color = makeColor();
}function makeColor()
{
if (elmS == 0) {
elmR = elmV; elmG = elmV; elmB = elmV;
}
else {
t1 = elmV;
t2 = (255 - elmS) * elmV / 255;
t3 = elmH % 60;
t3 = (t1 - t2) * t3 / 60; if (elmH < 60) {
elmR = t1; elmB = t2; elmG = t2 + t3;
}
else if (elmH < 120) {
elmG = t1; elmB = t2; elmR = t1 - t3;
}
else if (elmH < 180) {
elmG = t1; elmR = t2; elmB = t2 + t3;
}
else if (elmH < 240) {
elmB = t1; elmR = t2; elmG = t1 - t3;
}
else if (elmH < 300) {
elmB = t1; elmG = t2; elmR = t2 + t3;
}
else if (elmH < 360) {
elmR = t1; elmG = t2; elmB = t1 - t3;
}
else {
elmR = 0; elmG = 0; elmB = 0;
}
} elmR = Math.floor(elmR);
elmG = Math.floor(elmG);
elmB = Math.floor(elmB); clrRGB = '#' + elmR.toString(16) + elmG.toString(16) + elmB.toString(16); elmH = elmH + rate;
if (elmH >= 360)
elmH = 0; return clrRGB;
}
</script></head><body>
<a href="link.htm" target="_blank">链接效果</a>
</body></html>
<html><head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<meta name="GENERATOR" content="Microsoft FrontPage 4.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<title>链接效果</title>
<script>
var rate = 20;
var obj;
var act = 0;
var elmH = 0;
var elmS = 128;
var elmV = 255;
var clrOrg;
var TimerID;
if (navigator.appName.indexOf("Microsoft",0) != -1 && parseInt(navigator.appVersion) >= 4) {
Browser = true;
} else {
Browser = false;
}if (Browser) {
document.onmouseover = doRainbowAnchor;
document.onmouseout = stopRainbowAnchor;
}
function doRainbow()
{
if (Browser && act != 1) {
act = 1;
obj = event.srcElement;
clrOrg = obj.style.color;
TimerID = setInterval("ChangeColor()",100);
}
}function stopRainbow()
{
if (Browser && act != 0) {
obj.style.color = clrOrg;
clearInterval(TimerID);
act = 0;
}
}
function doRainbowAnchor()
{
if (Browser && act != 1) {
obj = event.srcElement; while (obj.tagName != 'A' && obj.tagName != 'BODY') {
obj = obj.parentElement;
if (obj.tagName == 'A' || obj.tagName == 'BODY')
break;
} if (obj.tagName == 'A' && obj.href != '') {
act = 1;
clrOrg = obj.style.color;
TimerID = setInterval("ChangeColor()",100);
}
}
}
function stopRainbowAnchor()
{
if (Browser && act != 0) {
if (obj.tagName == 'A') {
obj.style.color = clrOrg;
clearInterval(TimerID);
act = 0;
}
}
}
function ChangeColor()
{
obj.style.color = makeColor();
}function makeColor()
{
if (elmS == 0) {
elmR = elmV; elmG = elmV; elmB = elmV;
}
else {
t1 = elmV;
t2 = (255 - elmS) * elmV / 255;
t3 = elmH % 60;
t3 = (t1 - t2) * t3 / 60; if (elmH < 60) {
elmR = t1; elmB = t2; elmG = t2 + t3;
}
else if (elmH < 120) {
elmG = t1; elmB = t2; elmR = t1 - t3;
}
else if (elmH < 180) {
elmG = t1; elmR = t2; elmB = t2 + t3;
}
else if (elmH < 240) {
elmB = t1; elmR = t2; elmG = t1 - t3;
}
else if (elmH < 300) {
elmB = t1; elmG = t2; elmR = t2 + t3;
}
else if (elmH < 360) {
elmR = t1; elmG = t2; elmB = t1 - t3;
}
else {
elmR = 0; elmG = 0; elmB = 0;
}
} elmR = Math.floor(elmR);
elmG = Math.floor(elmG);
elmB = Math.floor(elmB); clrRGB = '#' + elmR.toString(16) + elmG.toString(16) + elmB.toString(16); elmH = elmH + rate;
if (elmH >= 360)
elmH = 0; return clrRGB;
}
</script></head><body>
<a href="link.htm" target="_blank">链接效果</a>
</body></html>
<!-- Begin
IE = (document.all);
if (IE) {
var chidc = new Array();
var hexc = new Array('0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F');
var chidn = new Array(100,70,40);
var step = new Array(10,10,10);
var chway = new Array(step[0],step[1],step[2]);
var tone = new Array(1,1,1);
function chcol() {
for (i=0; i<3; i++) {
chidn[i]+=chway[i];
if (chidn[i]>=255) {
chidn[i] = 255;
chway[i] = -step[i];
}
else if (chidn[i]<=40) {
chidn[i] = 40;
chway[i] = step[i];
tone[i]>=3? tone[i] = 1:tone[i]++;
}
col1 = hexc[Math.floor(chidn[i]/16)];
col2 = hexc[chidn[i]%16];
tored = '';
toblue = '';
for (j=1; j<tone[i]; j++) tored+='00';
for (j=3; j>tone[i]; j--) toblue+='00';
chidc[i] = '#'+tored+col1+col2+toblue;
td = eval('document.all.chcol'+i);
td.style.backgroundColor = chidc[i];
}
setTimeout('chcol()',100);
}
}
// End -->
</script>
<table cellspacing=2 cellpadding=0 bgcolor=#999999 width=300>
<tr>
<td width=33% align=center id=chcol0 name=id=chcol0>
<font color=white>Left</td>
<td width=33% align=center id=chcol1 name=id=chcol0>
<font color=white>To</td>
<td width=33% align=center id=chcol2 name=id=chcol0>
<font color=white>Right</td>
</tr>
</table>
<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
chcol();
// End -->
</script>
改为:
text.charAt(i)