var bgimage=new Array()
  bgimage[1]="im_bg/bgimg01.jpg"
  bgimage[2]="im_bg/bgimg02.jpg"
  bgimage[3]="im_bg/bgimg03.jpg"
  bgimage[4]="im_bg/bgimg04.jpg"
  bgimage[5]="im_bg/bgimg05.jpg"
  bgimage[6]="im_bg/bgimg06.jpg"
  bgimage[7]="im_bg/bgimg07.jpg"
  bgimage[8]="im_bg/bgimg08.jpg"
  bgimage[9]="im_bg/bgimg09.jpg"
  bgimage[10]="im_bg/bgimg10.jpg"
  bgimage[11]="im_bg/bgimg11.jpg"
  bgimage[12]="im_bg/bgimg12.jpg"
  bgimage[13]="im_bg/bgimg13.jpg"
  bgimage[14]="im_bg/bgimg14.jpg"
  bgimage[15]="im_bg/bgimg15.jpg"
  bgimage[16]="im_bg/bgimg16.jpg"
  bgimage[17]="im_bg/bgimg17.jpg"
  bgimage[18]="im_bg/bgimg18.jpg"
  bgimage[19]="im_bg/bgimg19.jpg"
  bgimage[20]="im_bg/bgimg20.jpg"
  bgimage[21]="im_bg/bgimg21.jpg"
  bgimage[22]="im_bg/bgimg22.jpg"
  bgimage[23]="im_bg/bgimg23.jpg"
  bgimage[24]="im_bg/bgimg24.jpg"
  bgimage[25]="im_bg/bgimg25.jpg"
  bgimage[26]="im_bg/bgimg26.jpg"
  bgimage[27]="im_bg/bgimg27.jpg"
  bgimage[28]="im_bg/bgimg28.jpg"
  bgimage[29]="im_bg/bgimg29.jpg"
  bgimage[30]="im_bg/bgimg30.jpg"
  bgimage[31]="im_bg/bgimg31.jpg"
  bgimage[32]="im_bg/bgimg32.jpg"
  bgimage[33]="im_bg/bgimg33.jpg"
  bgimage[34]="im_bg/bgimg34.jpg"
  bgimage[35]="im_bg/bgimg35.jpg"
  bgimage[36]="im_bg/bgimg36.jpg"
  bgimage[37]="im_bg/bgimg37.jpg"
  bgimage[38]="im_bg/bgimg38.jpg"
  bgimage[39]="im_bg/bgimg39.jpg"
  bgimage[40]="im_bg/bgimg07.jpg"
  bgimage[41]="im_bg/bgimg41.jpg"
  bgimage[42]="im_bg/bgimg42.jpg"
  bgimage[43]="im_bg/bgimg43.jpg"
  bgimage[44]="im_bg/bgimg44.jpg"
  bgimage[45]="im_bg/bgimg32.jpg"
  bgimage[46]="im_bg/bgimg43.jpg"
  bgimage[47]="im_bg/bgimg34.jpg"
  bgimage[48]="im_bg/bgimg37.jpg"
  bgimage[49]="im_bg/bgimg08.jpg"
  bgimage[50]="im_bg/bgimg07.jpg"
  bgimage[51]="im_bg/bgimg51.jpg"
  bgimage[52]="im_bg/bgimg52.jpg"
  bgimage[53]="im_bg/bgimg53.jpg"
  bgimage[54]="im_bg/bgimg54.jpg"
  bgimage[55]="im_bg/bgimg55.jpg"
  bgimage[56]="im_bg/bgimg56.jpg"
  bgimage[57]="im_bg/bgimg57.jpg"
  bgimage[58]="im_bg/bgimg58.jpg"
  bgimage[59]="im_bg/bgimg59.jpg"
  bgimage[60]="im_bg/bgimg60.jpg"

function rand_bgimg(){
  var ry=Math.floor(Math.random()*bgimage.length)
  if (ry==0)
     ry=1
     bg_picp.src=bgimage[ry]
}

function chgbg() {
	setTimeout("rand_bgimg(), chgbg()", (Math.random()*17000)+1000);
}