var windowWidth;
if (document.layers) windowWidth = window.outerWidth;
if (document.all) windowWidth = document.body.clientWidth;
document.write('<div style="position:absolute; z-index:-1; ');
document.write('top:325px; left:' + (75+(windowWidth-750)/2) + 'px;">');
document.write('<embed src="images/dolphin.swf" wmode="transparent"');
document.write('width="750" height="250">');
document.write('</div>');