var _POPUP_FEATURES = 'location=1, statusbar=1, menubar=1, toolbar=1, scrollbars=1, resizable=1, width=1024, height=768';
var _LOGIN = 'location=0, statusbar=0, menubar=0, toolbar=0, scrollbars=1, resizable=1, width=1024, height=600';

var strSearchBox = 'Search';

var d=document, imgs = new Array(), zInterval = null, current=0, pause=false, xFadeDelay = 8000;

function so_init() {
	if(!d.getElementById || !d.createElement) return;

	imgs = d.getElementById("imgContainer").getElementsByTagName("a");
	for(i=1; i < imgs.length; i++) imgs[i].xOpacity = 0;

	imgs[0].style.display = "block";
	imgs[0].xOpacity = .99;

	setTimeout(so_xfade,xFadeDelay);
}

function so_xfade() {
	cOpacity = imgs[current].xOpacity;
	nIndex = imgs[current+1]?current+1:0;
	nOpacity = imgs[nIndex].xOpacity;

	cOpacity-=.05; 
	nOpacity+=.05;

	imgs[nIndex].style.display = "block";
	imgs[current].xOpacity = cOpacity;
	imgs[nIndex].xOpacity = nOpacity;
	
	setOpacity(imgs[current]); 
	setOpacity(imgs[nIndex]);
	
	if(cOpacity<=0) {
		imgs[current].style.display = "none";
		current = nIndex;
		setTimeout(so_xfade,xFadeDelay);
	} else {
		setTimeout(so_xfade,50);
	}
	
	function setOpacity(obj) {
	
		if(obj.xOpacity>.99) {
			obj.xOpacity = .99;
			return;
		}
		obj.style.opacity = obj.xOpacity;
		obj.style.MozOpacity = obj.xOpacity;
		obj.style.filter = "alpha(opacity=" + (obj.xOpacity*100) + ")";
	}
}


function raw_popup(url, target, features) {
    if (isUndefined(features)) features = _POPUP_FEATURES;
    if (isUndefined(target  )) target   = '_blank';
    var theWindow = window.open(url, target, features);
    theWindow.focus();
    return theWindow;
}

function link_popup(src, features) {
    return raw_popup(src.getAttribute('href'), src.getAttribute('target') || '_blank', features);
}

function isUndefined(v) {
    var undef;
    return v===undef;
}



function checkClear(what) {
	if (what.value == strSearchBox) what.value = '';
	what.style.color = '#000000';
}

function checkRestore(what) {
	if (what.value == '') what.value = strSearchBox;
	what.style.color = '#cccccc';
}