function $(){var elements=new Array();for(var i=0;i<arguments.length;i++){var element=arguments[i];if(typeof element=='string')
element=document.getElementById(element);if(arguments.length==1)
return element;elements.push(element);}
return elements;}
var rollover_obj={_roll:function(trgt,on){try{if((trgt.tagName=='IMG'||trgt.tagName=='INPUT')&&trgt.id){var new_image=path_to_images+'/';new_image+=trgt.id.replace(/-/g,'_');var extension='gif';if(trgt.src.indexOf('jpg')!=-1){extension='jpg';}
new_image+=on+'.'+extension;trgt.src=new_image;}}catch(e){}},rollover:function(e,on){var trgt=(e.srcElement)?e.srcElement:e.target;if(trgt.src.indexOf(on)==-1)
{if(trgt.className.indexOf('menu-on')==-1){this._roll(trgt,on);}}}}
var rollover_images=['nav-pt-employees','nav-pt-project-managers','nav-pt-executives','nav-pt-system-admin']
YAHOO.util.Event.addListener(rollover_images,'mouseover',function(e){rollover_obj.rollover(e,'_on');});YAHOO.util.Event.addListener(rollover_images,'mouseout',function(e){rollover_obj.rollover(e,'_off');});