// Declare the namespaces
if (Kinsail.Positioning == null || typeof(Kinsail.Positioning) != "object") {Kinsail.Positioning = new Object();}

// JavaScript element positioning functions
Kinsail.Positioning = {

    // passing in a null offset does not modify the position in that axis 
    // [ie if you only want to change the x location of an item pass in null for the y]
    setPositions: function (AnchorObjectName, SetObjectName, OffsetX, OffsetY, ScrolledParentObjectName) {
        // handle bad offsets being passed in
        if (OffsetX != null && isNaN(OffsetX)) {
            OffsetX = 0;
        }
        if (OffsetY != null && isNaN(OffsetY)) {
            OffsetY = 0;
        }
        // adjust for an element within a scrolled div/etc
        if (ScrolledParentObjectName != null) {
            ScrolledObject = eval(strGetItemPrefix + ScrolledParentObjectName + strGetItemSuffix)
            OffsetX -= ScrolledObject.scrollLeft;
            OffsetY -= ScrolledObject.scrollTop;
        }
		// get the anchor object
        if (typeof(AnchorObjectName) == 'string'){
	        objAnchor = eval(strGetItemPrefix + AnchorObjectName + strGetItemSuffix);
	    } else if (typeof(AnchorObjectName) == 'object'){
	    	objAnchor = AnchorObjectName;
	    }
	    	
        if (objAnchor == null)
        	return;

        // create the array that will contain the X & Y positions for the anchor element
        aryAnchorLocation = new Array();
        // populate the array with the anchor's X & Y positions
        aryAnchorLocation = Kinsail.Positioning.findPos(objAnchor);
        // reset the SetObject's positions using these values with the offsets
        if ( OffsetX != null ) {
            // Reset X position
            eval(strGetItemPrefix + SetObjectName + strGetItemSuffix + strStyle + '.left = "' + parseInt(parseInt(aryAnchorLocation[0]) + parseInt(OffsetX)) + 'px"');
        }
        if ( OffsetY != null ) {
            // Reset Y position
            eval(strGetItemPrefix + SetObjectName + strGetItemSuffix + strStyle + '.top = "' + parseInt(parseInt(aryAnchorLocation[1]) + parseInt(OffsetY)) + 'px"');
        }
    },
    
    SetX: function(ObjectName, XValue) {
        eval(strGetItemPrefix + ObjectName + strGetItemSuffix + strStyle + '.left = "' + parseInt(XValue) + 'px"');
    },
    SetY: function(ObjectName, YValue) {
        eval(strGetItemPrefix + ObjectName + strGetItemSuffix + strStyle + '.top = "' + parseInt(YValue) + 'px"');
    },

    // http://www.quirksmode.org/js/findpos.html
    // modified by Kinsail
    findPos: function (ObjectName) {
        //obj = eval(strGetItemPrefix + ObjectName + strGetItemSuffix);
        if (typeof(ObjectName) == 'string'){
	        obj = eval(strGetItemPrefix + ObjectName + strGetItemSuffix);
	    } else if (typeof(ObjectName) == 'object'){
	    	obj = ObjectName;
	    }
    	if (obj == null) return;
        var curleft = curtop = 0;
        if (obj.offsetParent) {
            curleft = obj.offsetLeft
            curtop = obj.offsetTop
            while (obj = obj.offsetParent) {
                curleft += obj.offsetLeft
                curtop += obj.offsetTop
            }
        }
        return [curleft,curtop];
    },
    
    // center an object in the middle of the window
	centerInWindow: function (divID) {
		// get the div object
		objDiv = eval(strGetItemPrefix + divID + strGetItemSuffix);
		if (objDiv == null) return;
		
		// get the inner dimensions of the browser
		var width,height;
		if (self.innerHeight) // all except Explorer
		{
			width = self.innerWidth;
			height = self.innerHeight;
		}
		else if (document.documentElement && document.documentElement.clientHeight)
			// Explorer 6 Strict Mode
		{
			width = document.documentElement.clientWidth;
			height = document.documentElement.clientHeight;
		}
		else if (document.body) // other Explorers
		{
			width = document.body.clientWidth;
			height = document.body.clientHeight;
		}
		
		//get how much the page has scrolled
		var x,y;
		if (self.pageYOffset) // all except Explorer
		{
			x = self.pageXOffset;
			y = self.pageYOffset;
		}
		else if (document.documentElement && document.documentElement.scrollTop)
			// Explorer 6 Strict
		{
			x = document.documentElement.scrollLeft;
			y = document.documentElement.scrollTop;
		}
		else if (document.body) // all other Explorers
		{
			x = document.body.scrollLeft;
			y = document.body.scrollTop;
		}
		
		strWidth = eval('objDiv' + strStyle + '.width')
		intWidth = parseInt(strWidth.substring(0, strWidth.length-2));
		eval(strGetItemPrefix + divID + strGetItemSuffix + strStyle + '.left = "' + parseInt(parseInt(parseInt(width)/2) + parseInt(x) - parseInt(intWidth/2)) + 'px"');
		eval(strGetItemPrefix + divID + strGetItemSuffix + strStyle + '.top = "' + parseInt(parseInt(parseInt(height)/3) + parseInt(y)) + 'px"');
	},
	
	//figure out the width of the window
	getWindowWidth: function () {

		var theWidth = 0;
		
		if (window.innerWidth) {theWidth = window.innerWidth;}
		else if (document.documentElement && document.documentElement.clientWidth) {theWidth = document.documentElement.clientWidth;}
		else if (document.body) {theWidth = document.body.clientWidth;}
		
		return theWidth;
	},
	
	//figure out the width of the window
	getWindowHeight: function () {

		var theHeight = 0;
		
		if (window.innerHeight) {theHeight = window.innerHeight;}
		else if (document.documentElement && document.documentElement.clientHeight) {theHeight = document.documentElement.clientHeight;}
		else if (document.body) {theHeight = document.body.clientHeight;}
		
		return theHeight;
	},
	
	getWindowScrollX: function () {
	    var scrollX = 0;
	    
        if(window.innerWidth) {
            scrollX = window.pageXOffset;
        }
        if(document.documentElement && document.documentElement.clientWidth) {
            scrollX = document.documentElement.scrollLeft;
        }
        if(document.body.clientWidth) {
            scrollX = document.body.scrollLeft;
        }
        
        return scrollX;
	},
	
	getWindowScrollY: function () {
	    var scrollY = 0;
	    
        if(window.innerWidth) {
            scrollY = window.pageYOffset;
        }
        if(document.documentElement && document.documentElement.clientWidth) {
            scrollY = document.documentElement.scrollTop;
        }
        if(document.body.clientWidth) {
            scrollY = document.body.scrollTop;
        }
        
        return scrollY;
	}
}; //end Kinsail.Positioning