var agt=navigator.userAgent.toLowerCase();
var isSafari = 0;
if (agt.indexOf("safari") != -1) isSafari = 1;


//********************************************************
	//
	//	preloadImages() function
	//
	//	DESCRIPTION
	//	this function populates the selected images of a page
	//	en masse, rather than piecemeal
	//
	//	INPUTS:
	//		Dynamic list of arguments : String (Required)
	//
	//	OUTPUTS:
	//		None
	//
	//********************************************************

	function preloadImages()
		{

			var objDoc = document;
			var i;
			var j;
			var a = preloadImages.arguments;


			if(objDoc.images)
				{

					if(!objDoc.arrPreload)
						{
							objDoc.arrPreload = new Array();
						}

					j = objDoc.arrPreload.length;

					for(i=0; i < a.length; i++)
						{
							if (a[i].indexOf("#") != 0)
								{
									objDoc.arrPreload[j] = new Image;
									objDoc.arrPreload[j++].src = a[i];
								}
						}
				}
		}

function loadImages(strGroup)
{
	
	//always load the top row
	preloadImages('/images/page_layout/nav/nav_primary1_ovr.gif', '/images/page_layout/nav/nav_primary2_ovr.gif', '/images/page_layout/nav/nav_primary3_ovr.gif', '/images/page_layout/nav/nav_primary4_ovr.gif', '/images/page_layout/nav/nav_primary5_ovr.gif', '/images/page_layout/nav/nav_primary6_ovr.gif', '/images/page_layout/buttons/btn_hp_wireless_ovr.gif','/images/page_layout/buttons/btn_hp_multi_ovr.gif');
	//load selected subnav
	switch(strGroup) 
	{
		case 'mediaflo':
			//alert('mediaflo');			
			preloadImages('/images/page_layout/nav/nav_tab1_sub1_ovr.gif', '/images/page_layout/nav/nav_tab1_sub2_ovr.gif', '/images/page_layout/nav/nav_tab1_sub3_ovr.gif', '/images/page_layout/nav/nav_tab1_sub4_ovr.gif');
			break;
		case 'ecosystem':
			//alert('ecosystem');			
			preloadImages('/images/page_layout/nav/nav_tab2_sub1_ovr.gif', '/images/page_layout/nav/nav_tab2_sub2_ovr.gif', '/images/page_layout/nav/nav_tab2_sub3_ovr.gif','/images/page_layout/nav/nav_tab2_sub4_ovr.gif');
			break;
		case 'news':
			//alert('news');			
			preloadImages('/images/page_layout/nav/nav_tab4_sub1_ovr.gif', '/images/page_layout/nav/nav_tab4_sub2_ovr.gif', '/images/page_layout/nav/nav_tab4_sub3_ovr.gif', '/images/page_layout/nav/nav_tab4_sub4_ovr.gif');
			break;
		default:
			break;
	}
	
}

function Start(page) {
OpenWin = this.open(page, "CtrlWindow", "width=580,height=720,toolbar=no,address=no,menubar=no,location=no,scrollbars=yes,resizable=yes,status=no");
}