var isMacIE = ((navigator.appVersion.indexOf("Mac") != -1)&&(navigator.appVersion.indexOf("MSIE") != -1) && (navigator.userAgent.toLowerCase().indexOf("opera") == -1 )) ? true : false
if(isMacIE)document.write('<br clear=all>')
//if(isMacIE)document.write('<div style="clear:none; overflow:visible">')