function RandomNumber() 
{
  var today = new Date();
  var num= Math.abs(Math.sin(today.getTime()/1000));
  return num;
}

function RandomGraphics() 
{
  var x = RandomNumber();

  if (x > .77) 
{document.write("<A HREF='index.php'><img border=0 src='images/header/images/main.jpg' hspace=0 vspace=0 width=770 height=147 alt='CARS 4 U - YOUR SOURCE FOR PRE-OWNED IMPORTS AND DOMESTIC CARS'></a>"); return; 
}
  if (x > .66) 
{document.write("<A HREF='index.php'><img border=0 src='images/header/images/main2.jpg' hspace=0 vspace=0 width=770 height=147 alt='CARS 4 U - YOUR SOURCE FOR PRE-OWNED IMPORTS AND DOMESTIC CARS'></a>"); return; 
}
  if (x > .55) 
{document.write("<A HREF='index.php'><img border=0 src='images/header/images/main.jpg' hspace=0 vspace=0 width=770 height=147 alt='CARS 4 U - YOUR SOURCE FOR PRE-OWNED IMPORTS AND DOMESTIC CARS'></a>"); return; 
}
  if (x > .44) 
{document.write("<A HREF='index.php'><img border=0 src='images/header/images/main2.jpg' hspace=0 vspace=0 width=770 height=147 alt='CARS 4 U - YOUR SOURCE FOR PRE-OWNED IMPORTS AND DOMESTIC CARS'></a>"); return; 
}
  if (x > .33) 
{document.write("<A HREF='index.php'><img border=0 src='images/header/images/main.jpg' hspace=0 vspace=0 width=770 height=147 alt='CARS 4 U - YOUR SOURCE FOR PRE-OWNED IMPORTS AND DOMESTIC CARS'></a>"); return; 
}
  if (x > .22) 
{document.write("<A HREF='index.php'><img border=0 src='images/header/images/main2.jpg' hspace=0 vspace=0 width=770 height=147 alt='CARS 4 U - YOUR SOURCE FOR PRE-OWNED IMPORTS AND DOMESTIC CARS'></a>"); return; 
}
  if (x > .11) 
{document.write("<A HREF='index.php'><img border=0 src='images/header/images/main.jpg' hspace=0 vspace=0 width=770 height=147 alt='CARS 4 U - YOUR SOURCE FOR PRE-OWNED IMPORTS AND DOMESTIC CARS'></a>"); return; 
}
  if (x > 0)   
{document.write("<A HREF='index.php'><img border=0 src='images/header/images/main2.jpg' hspace=0 vspace=0 width=770 height=147 alt='CARS 4 U - YOUR SOURCE FOR PRE-OWNED IMPORTS AND DOMESTIC CARS'></a>"); return; 
}
}

RandomGraphics();