//globals
var ie = (document.all) ? true : false;

var ns = (document.layers) ? true : false;

var dom = (!document.all && document.getElementById) ? true : false;




//nav

preload('nRsc_on','/images/nav/rsc_on.gif');
preload('nRsc_off','/images/nav/rsc_off.gif');
preload('nServices_on','/images/nav/services_on.gif');
preload('nServices_off','/images/nav/services_off.gif');
preload('nAcademy_on','/images/nav/academy_on.gif');
preload('nAcademy_off','/images/nav/academy_off.gif');
preload('nPartners_on','/images/nav/partners_on.gif');
preload('nPartners_off','/images/nav/partners_off.gif');
preload('nSolutions_on','/images/nav/solutions_on.gif');
preload('nSolutions_off','/images/nav/solutions_off.gif');
preload('nNews_on','/images/nav/news_on.gif');
preload('nNews_off','/images/nav/news_off.gif');

function preload(imgObj,imgSrc) {

	if (document.images) {

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

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

	}

}

function chgImg(imgField,newImg) {

	if (ns) {eval('document.images[imgField].src = '+newImg+'.src')}

	if (ie) {document[imgField].src = eval(newImg+'.src')}

	if (dom) {document.images[imgField].src = eval(newImg+'.src');}

}

function popWindow(winurl,name,dimensions){
	window.open(winurl,name,dimensions+",menubar=0,resizeable=0,location=0,scrollbars=1,status=0,titlebar=0,toolbar=0");
}