function smwin(newurl) {
		popupWin=window.open(newurl,'open_window','width=300,height=300,left=300,top=175,screenX=300,screenY=175,scrollbars=yes,menubar=no,resize=no')
   }
   function island(newurl) {
		popupWin=window.open(newurl,'islands','width=620,height=420,left=300,top=175,screenX=300,screenY=175,scrollbars=yes,menubar=no,resize=no')
   }
   function construction() {
		popupWin=window.open('/pop_up/construction.html','construction','width=300,height=200,left=300,top=175,screenX=300,screenY=175')
   }
   function article(newurl) {
		popupWin=window.open(newurl,'articles','width=420,height=400,scrollbars,resize=no')
   }
   function tryback() {
		popupWin=window.open('/pop_up/try_back.html','construction','width=300,height=300,left=250,top=175,screenX=300,screenY=175')
   }
   function lgwin(newurl) {
		popupWin=window.open(newurl,'open_window','width=600,height=400,left=300,top=175,screenX=300,screenY=200,scrollbars,resize=no')
   }
   function redirect(newurl) {
   		opener.location.href=newurl;
		self.close();
   }
   function popup(newurl,w,h) {
		popupWin=window.open(newurl,'pop_up','width='+(w)+',height='+(h)+',left=300,top=175,screenX=300,screenY=175,menubar=no,resize=no,scrollbars')
   }
   function rollOver(img, newimage) {
		if (document.images) {
			document.images[img].src = newimage;
		}
	}