var banner=new Array()
banner[0]='<img src="index_slide/1.jpg" width="192" height="133" BORDER="0">'
banner[1]='<img src="index_slide/2.jpg" width="192" height="133" BORDER="0">'
banner[2]='<img src="index_slide/3.jpg" width="192" height="133" BORDER="0">'
banner[3]='<img src="index_slide/4.jpg" width="192" height="133" BORDER="0">'
//banner[4]='<img src="banner_slide/05.jpg" width="601" height="126" BORDER="0">'
//banner[5]='<img src="banner_slide/06.jpg" width="601" height="126" BORDER="0">'
var whichbanner=Math.floor(Math.random()*(banner.length))
document.write(banner[whichbanner])