ns4 = (document.layers)? true:false
ie4 = (document.all)? true:false

function preload(imgObj,imgSrc) {
//	if (document.images) {

		eval(imgObj+' = new Image()')

		eval(imgObj+'.src = "'+imgSrc+'"')

//	}

}



//____Preload Images_____
     
preload('pmhome_arrow_off','images/dropdown_menu/pmhome_arrow_off.gif','pmorris');
preload('pmhome_arrow_on','images/dropdown_menu/pmhome_arrow_on.gif','pmorris');
preload('pmhome','images/dropdown_menu/pmhome.gif','pmorris');

preload('investor_arrow_off','images/dropdown_menu/investor_arrow2_off.gif','pmorris');
preload('investor_arrow_on','images/dropdown_menu/investor_arrow_on.gif','pmorris');
preload('investor','images/dropdown_menu/investor.gif','pmorris');

preload('working_arrow_off','images/dropdown_menu/working_arrow_off.gif','pmorris');
preload('working_arrow_on','images/dropdown_menu/working_arrow_on.gif','pmorris');
preload('working','images/dropdown_menu/working.gif','pmorris');

preload('kraftfoods_arrow_off','images/dropdown_menu/kraftfoods_arrow_off.gif','pmorris');
preload('kraftfoods_arrow_on','images/dropdown_menu/kraftfoods_arrow_on.gif','pmorris');
preload('kraftfoods','images/dropdown_menu/kraftfoods.gif','pmorris');

preload('millerbrew_arrow_off','images/dropdown_menu/millerbrew_arrow_off.gif','pmorris');
preload('millerbrew_arrow_on','images/dropdown_menu/millerbrew_arrow_on.gif','pmorris');
preload('millerbrew','images/dropdown_menu/millerbrew.gif','pmorris');

preload('pmusa_arrow_off','images/dropdown_menu/pmusa_arrow_off.gif','pmorris');
preload('pmusa_arrow_on','images/dropdown_menu/pmusa_arrow_on.gif','pmorris');
preload('pmusa','images/dropdown_menu/pmusa.gif','pmorris');

preload('pmi_arrow_off','images/dropdown_menu/pmi_arrow_off.gif','pmorris');
preload('pmi_arrow_on','images/dropdown_menu/pmi_arrow_on.gif','pmorris');
preload('pmi','images/dropdown_menu/pmi.gif','pmorris');


function changeLayerImage(layer,imgName,imgObj) {

if (document.images) {

		if (document.layers && layer!=null) eval('document.'+layer+'.document.images["'+imgName+'"].src = '+imgObj+'.src')

		else

		document.images[imgName].src = eval(imgObj+".src")

	}

}