jQuery.noConflict();
var iconMap = {
    'a[href$=".pdf"]': '/en/images/icon/pdf.gif',
    'a[href$=".doc"]': '/en/images/icon/doc.gif',
    'a[href$=".ppt"]': '/en/images/icon/ppt.gif',
    'a[href$=".xls"]': '/en/images/icon/xls.gif'
};
jQuery(function(){
    jQuery.each(iconMap, function(selector, icon){
        jQuery(selector).css({
            'background': 'transparent '+
                          'url(\''+icon+'\') '+
                          'center left no-repeat',
            'padding-left': '20px'
		});
	});
});