$(document).ready(function() {
$('#jobmain').setScroll(
				{img:'images/scroll_bk.gif',width:11},//background-image and width
				{img:'images/scroll_arrow_up.gif',height:5},//up
				{img:'images/scroll_arrow_down.gif',height:5},//down
				{img:'images/scroll_bar.gif',height:40}//bar
);	
})