Dynamic Color Changing Background Using JavaScript
Hi,
Using this Script you can change the Background Color automatically without doing action. You can get almost all the colors.Add it After the Head Tag
<script language="JavaScript">
<!--
//you can assign the initial color of the background here
r=255;
g=255;
b=255;
flag=0;
t=new Array;
o=new Array;
d=new Array;
function hex(a,c)
{
t[a]=Math.floor(c/16)
o[a]=c%16
switch (t[a])
{
case 10:
t[a]='A';
break;
case 11:
t[a]='B';
break;
case 12:
t[a]='C';
break;
case 13:
t[a]='D';
break;
case 14:
t[a]='E';
break;
case 15:
t[a]='F';
break;
default:
break;
}
switch (o[a])
{
case 10:
o[a]='A';
break;
case 11:
o[a]='B';
break;
case 12:
o[a]='C';
break;
case 13:
o[a]='D';
break;
case 14:
o[a]='E';
break;
case 15:
o[a]='F';
break;
default:
break;
}
}
function ran(a,c)
{
if ((Math.random()>2/3||c==0)&&c<255)
{
c++
d[a]=2;
}
else
{
if ((Math.random()<=1/2||c==255)&&c>0)
{
c--
d[a]=1;
}
else d[a]=0;
}
return c
}
function do_it(a,c)
{
if ((d[a]==2&&c<255)||c==0)
{
c++
d[a]=2
}
else
if ((d[a]==1&&c>0)||c==255)
{
c--;
d[a]=1;
}
if (a==3)
{
if (d[1]==0&&d[2]==0&&d[3]==0)
flag=1
}
return c
}
function dynamic()
{
if (flag==0)
{
r=ran(1, r);
g=ran(2, g);
b=ran(3, b);
hex(1,r)
hex(2,g)
hex(3,b)
document.body.style.background="#"+t[1]+o[1]+t[2]+o[2]+t[3]+o[3]
flag=50
}
else
{
r=do_it(1, r)
g=do_it(2,g)
b=do_it(3,b)
hex(1,r)
hex(2,g)
hex(3,b)
document.body.style.background="#"+t[1]+o[1]+t[2]+o[2]+t[3]+o[3]
flag--
}
setTimeout('dynamic()',50)
}
-->
Now call that Dynamic Function in the body Tag.
<body onload="dynamic()">
Now Run the Application, You See different colors in the Background.
Inside of Colors you can also add pictures for changing Background.
Please Try it and Post your Suggestions.
Code Snippet for Dynamic Color Changing Background Using JavaScript
You ca try below code snippet forOR,
Or
function changeBackground(color) {
document.body.style.background = color;
}
Example of Javascript Change Background Color