//store the quotations in arrays
quotes = new Array(5);

quotes[0] = "<img src=\"images/Header.gif\" width=\"760\" height=\"119\">";
quotes[1] = "<img src=\"images/Header1.gif\" width=\"760\" height=\"119\">";
quotes[2] = "<img src=\"images/Header2.gif\" width=\"760\" height=\"119\">";
quotes[3] = "<img src=\"images/Header3.gif\" width=\"760\" height=\"119\">";
quotes[4] = "<img src=\"images/Header4.gif\" width=\"760\" height=\"119\">";
quotes[5] = "<img src=\"images/Header5.gif\" width=\"760\" height=\"119\">";
quotes[6] = "<img src=\"images/Header6.gif\" width=\"760\" height=\"119\">";



//calculate a random index
index = Math.floor(Math.random() * quotes.length);

//display the quotation

document.write(quotes[index]);