var doc0="<object classid='clsid:D27CDB6E-AE6D-11cf-96B8-444553540000' codebase='http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=5,0,0,0' width='360' height='36'><param name=movie menu=false value='/common/swf/bnr_360_36_rot01.swf'><param name=quality value=high><embed menu=false src='/common/swf/bnr_360_36_rot01.swf' quality=high pluginspage='http://www.macromedia.com/jp/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash' type='application/x-shockwave-flash' width='360' height='36'></embed></object>"

var doc1="<object classid='clsid:D27CDB6E-AE6D-11cf-96B8-444553540000' codebase='http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=5,0,0,0' width='360' height='36'><param name=movie menu=false value='/common/swf/bnr_360_36_rot02.swf'><param name=quality value=high><embed menu=false src='/common/swf/bnr_360_36_rot02.swf' quality=high pluginspage='http://www.macromedia.com/jp/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash' type='application/x-shockwave-flash' width='360' height='36'></embed></object>"

var checker = 0;
var doc = '';
checker = Math.floor(Math.random()*100);

        checker %= 2;
        switch(checker){
                case 0:doc=doc0;break;
                case 1:doc=doc1;break;
        }

function writerDoc(doc)
{
   document.write(doc);
}