/* ******************************************************************* */
/*   SCREEN FUNCTIONS                                                  */
/* ******************************************************************* */
var Screen = (function() {
	var screen = {};

	// Get a reference to the body
	// --------------------------------------------------------------------
	screen.getBody = function() {
		if (document.body) {
			return document.body;
		}
		if (document.getElementsByTagName) {
			var bodies = document.getElementsByTagName("BODY");
			if (bodies!=null && bodies.length>0) {
				return bodies[0];
			}
		}
		return null;
	};

	// Get the amount that the main document has scrolled from top
	// --------------------------------------------------------------------
	screen.getScrollTop = function() {
		if (document.documentElement && IsDefined(document.documentElement.scrollTop) && document.documentElement.scrollTop>0) {
			return document.documentElement.scrollTop;
		}
		if (document.body && IsDefined(document.body.scrollTop)) {
			return document.body.scrollTop;
		}
		return null;
	};
	
	// Get the amount that the main document has scrolled from left
	// --------------------------------------------------------------------
	screen.getScrollLeft = function() {
		if (document.documentElement && IsDefined(document.documentElement.scrollLeft) && document.documentElement.scrollLeft>0) {
			return document.documentElement.scrollLeft;
		}
		if (document.body && IsDefined(document.body.scrollLeft)) {
			return document.body.scrollLeft;
		}
		return null;
	};
	
	// Util function to default a bad number to 0
	// --------------------------------------------------------------------
	screen.zero = function(n) {
		return (!IsDefined(n) || isNaN(n))?0:n;
	};

	// Get the width of the entire document
	// --------------------------------------------------------------------
	screen.getDocumentWidth = function() {
		var width = 0;
		var body = screen.getBody();
		if (document.documentElement && (!document.compatMode || document.compatMode=="CSS1Compat")) {
		    var rightMargin = parseInt(CSS.get(body,'marginRight'),10) || 0;
		    var leftMargin = parseInt(CSS.get(body,'marginLeft'), 10) || 0;
			width = Math.max(body.offsetWidth + leftMargin + rightMargin, document.documentElement.clientWidth);
		}
		else {
			width =  Math.max(body.clientWidth, body.scrollWidth);
		}
		if (isNaN(width) || width==0) {
			width = screen.zero(self.innerWidth);
		}
		return width;
	};
	
	// Get the height of the entire document
	// --------------------------------------------------------------------
	screen.getDocumentHeight = function() {
		var body = screen.getBody();
		var innerHeight = (IsDefined(self.innerHeight)&&!isNaN(self.innerHeight))?self.innerHeight:0;
		if (document.documentElement && (!document.compatMode || document.compatMode=="CSS1Compat")) {
		    var topMargin = parseInt(CSS.get(body,'marginTop'),10) || 0;
		    var bottomMargin = parseInt(CSS.get(body,'marginBottom'), 10) || 0;
			return Math.max(body.offsetHeight + topMargin + bottomMargin, document.documentElement.clientHeight, document.documentElement.scrollHeight, screen.zero(self.innerHeight));
		}
		return Math.max(body.scrollHeight, body.clientHeight, screen.zero(self.innerHeight));
	};
	
	// Get the width of the viewport (viewable area) in the browser window
	// --------------------------------------------------------------------
	screen.getViewportWidth = function() {
		if (document.documentElement && (!document.compatMode || document.compatMode=="CSS1Compat")) {
			return document.documentElement.clientWidth;
		}
		else if (document.compatMode && document.body) {
			return document.body.clientWidth;
		}
		return screen.zero(self.innerWidth);
	};
	
	// Get the height of the viewport (viewable area) in the browser window
	// --------------------------------------------------------------------
	screen.getViewportHeight = function() {
		if (!window.opera && document.documentElement && (!document.compatMode || document.compatMode=="CSS1Compat")) {
			return document.documentElement.clientHeight;
		}
		else if (document.compatMode && !window.opera && document.body) {
			return document.body.clientHeight;
		}
		return screen.zero(self.innerHeight);
	};

	return screen;
})();var Sort = (function(){
	var sort = {};
	sort.AlphaNumeric = function(a,b) {
		if (a==b) { return 0; }
		if (a<b) { return -1; }
		return 1;
	};

	sort.Default = sort.AlphaNumeric;
	
	sort.NumericConversion = function(val) {
		if (typeof(val)!="number") {
			if (typeof(val)=="string") {
				val = parseFloat(val.replace(/,/g,''));
				if (isNaN(val) || val==null) { val=0; }
			}
			else {
				val = 0;
			}
		}
		return val;
	};
	
	sort.Numeric = function(a,b) {
		return sort.NumericConversion(a)-sort.NumericConversion(b);
	};

	sort.IgnoreCaseConversion = function(val) {
		if (val==null) { val=""; }
		return (""+val).toLowerCase();
	};

	sort.IgnoreCase = function(a,b) {
		return sort.AlphaNumeric(sort.IgnoreCaseConversion(a),sort.IgnoreCaseConversion(b));
	};

	sort.CurrencyConversion = function(val) {
		if (typeof(val)=="string") {
			val = val.replace(/^[^\d\.]/,'');
		}
		return sort.NumericConversion(val);
	};
	
	sort.Currency = function(a,b) {
		return sort.Numeric(sort.CurrencyConversion(a),sort.CurrencyConversion(b));
	};
	
	sort.DateConversion = function(val) {
		// inner util function to parse date formats
		function getdate(str) {
			// inner util function to convert 2-digit years to 4
			function fixYear(yr) {
				yr = +yr;
				if (yr<50) { yr += 2000; }
				else if (yr<100) { yr += 1900; }
				return yr;
			};
			var ret;
			// YYYY-MM-DD
			if (ret=str.match(/(\d{2,4})-(\d{1,2})-(\d{1,2})/)) {
				return (fixYear(ret[1])*10000) + (ret[2]*100) + (+ret[3]);
			}
			// MM/DD/YY[YY] or MM-DD-YY[YY]
			if (ret=str.match(/(\d{1,2})[\/-](\d{1,2})[\/-](\d{2,4})/)) {
				return (fixYear(ret[3])*10000) + (ret[1]*100) + (+ret[2]);
			}
			return 99999999; // So non-parsed dates will be last, not first
		};
		return getdate(val);
	};

	sort.Date = function(a,b) {
		return sort.Numeric(sort.DateConversion(a),sort.DateConversion(b));
	};

	return sort;
})();

function getXY(X, Y, pnlWidth, pnlHeight)
{
    var results = [];
    if ( (X + pnlWidth + 50) > (Screen.getViewportWidth() + Screen.getScrollLeft()))
    {
        X = Screen.getScrollLeft() + Screen.getViewportWidth() - pnlWidth - 50;
    }
    
    if ( (Y + pnlHeight + 50) > (Screen.getViewportHeight() + Screen.getScrollTop()))
    {
        Y -= (pnlHeight + 50);
    }
    
    if (X < Screen.getScrollLeft())
    {
        X = Screen.getScrollLeft();
        
    }
    
    if (Y < Screen.getScrollTop())
    {
        Y = Screen.getScrollTop();
    }
    
    results[0] = X;
    results[1] = Y;
    
    return results;
}                

function FindPos(obj)
{
    var curLeft = curTop = 0;
    if (obj.offsetParent)
    {
        do {
        curLeft += obj.offsetLeft;
        curTop += obj.offsetTop;
        } while (obj = obj.offsetParent);
        
        return [curLeft,curTop];
    }
}

function ClosePopup(pnlName)
{
    var pnl = document.getElementById(pnlName);
    pnl.style.display = 'none';
}

function ShowPopup(anchor,pnlName,backgroundColor,width,height)
{

        var pnl = document.getElementById(pnlName);
        var pos = FindPos(anchor);
        var coord = getXY(pos[0],pos[1] + 20,width,height);

        pnl.style.border = 'solid 1px #c08b00';
        pnl.style.overflow = 'auto';
        pnl.style.backgroundColor = backgroundColor;
        pnl.style.width=width+"px";
        pnl.style.height=height+"px";
        pnl.style.position = 'absolute';
        pnl.style.left = coord[0]+"px";
        pnl.style.top = coord[1]+"px";
        pnl.style.padding = '1em';
        pnl.style.display = 'block';
        //wsFHT.GetPopupContent(key,ShowPopupSuccess,OnError);

}

function ShowPopupSuccess(results)
{
    document.getElementById('popupHelp').innerHTML = results;
    document.getElementById('popupHelp').style.display = 'block';
}