if(document.images){

nav_cal = new Image()
nav_cal.src = "images/nav_cal.gif"
nav_cal_o = new Image()
nav_cal_o.src = "images/nav_cal_o.gif"
nav_ven = new Image()
nav_ven.src = "images/nav_ven.gif"
nav_ven_o = new Image()
nav_ven_o.src = "images/nav_ven_o.gif"
nav_abo = new Image()
nav_abo.src = "images/nav_abo.gif"
nav_abo_o = new Image()
nav_abo_o.src = "images/nav_abo_o.gif"
nav_mai = new Image()
nav_mai.src = "images/nav_mai.gif"
nav_mai_o = new Image()
nav_mai_o.src = "images/nav_mai_o.gif"
nav_con = new Image()
nav_con.src = "images/nav_con.gif"
nav_con_o = new Image()
nav_con_o.src = "images/nav_con_o.gif"
}

function RollOver(img,swp){
	if(document.images){
		document.images[img].src = eval(swp + ".src");
	}
}

function popArtist(url){
  popupWin = window.open(url, 'artists', 'width=586,height=500,menubar=no,scrollbars=yes,toolbar=no,location=no,directories=no,resizable=no')
}