/*
 * JTip
 * By Cody Lindley (http://www.codylindley.com)
 * Under an Attribution, Share Alike License
 * JTip is built on top of the very light weight jquery library.
 *
 * Modified by David Heggie (david@reefnet.co.uk)
 * 
 */

//on page load (as soon as its ready) call JT_init
$(document).ready(JT_init);

function JT_init() {
    $("a.jTip").toggle(function() {
        JT_show(this.href, this.id, this.name);
        return false;
    }, function() {
        $('#JT').remove();
        return false;
    });
}



function JT_show(url, linkId, title) {
	if(title == false) title = " ";

	var de = document.documentElement;
	var w = self.innerWidth || (de && de.clientWidth) || document.body.clientWidth;
	var hasArea = w - getAbsoluteLeft(linkId);
	var clickElementy = getAbsoluteTop(linkId) - 3; 
	
	var queryString = url.replace(/^[^\?]+\??/, '');
	var params = parseQuery( queryString );
	
	if(params['width'] === undefined) {
		params['width'] = 250
	};
	
	if(params['link'] !== undefined) {
		$('#' + linkId).bind('click',function() {
			window.location = params['link']
		});
		
		$('#' + linkId).css('cursor','pointer');
	}
	
	if(hasArea>((params['width']*1)+75)) {
		$("body").append("<div id='JT' style='width:"+params['width']*1+"px'><div id='JT_close_left'>"+title+"</div><div id='JT_copy'><div class='JT_loader'><div></div></div>");
		var arrowOffset = getElementWidth(linkId) + 11;
		var clickElementx = getAbsoluteLeft(linkId) + arrowOffset;
	} else {
		$("body").append("<div id='JT' style='width:"+params['width']*1+"px'><div id='JT_close_right'>"+title+"</div><div id='JT_copy'><div class='JT_loader'><div></div></div>");
		var clickElementx = getAbsoluteLeft(linkId) - ((params['width']*1) + 15);
	}
	
	$('#JT').css({left: clickElementx+"px", top: clickElementy+"px"});
	$('#JT').show();
	$('#JT_copy').load(url);
	
	$('#JT_copy').click(function() {
		$(this).parent().remove();
	});

}

function getElementWidth(objectId) {
	x = document.getElementById(objectId);
	return x.offsetWidth;
}

function getAbsoluteLeft(objectId) {
	// Get an object left position from the upper left viewport corner
	o = document.getElementById(objectId)
	oLeft = o.offsetLeft            // Get left position from the parent object
	while(o.offsetParent!=null) {   // Parse the parent hierarchy up to the document element
		oParent = o.offsetParent    // Get parent object reference
		oLeft += oParent.offsetLeft // Add parent left position
		o = oParent
	}
	return oLeft
}

function getAbsoluteTop(objectId) {
	// Get an object top position from the upper left viewport corner
	o = document.getElementById(objectId)
	oTop = o.offsetTop            // Get top position from the parent object
	while(o.offsetParent!=null) { // Parse the parent hierarchy up to the document element
		oParent = o.offsetParent  // Get parent object reference
		oTop += oParent.offsetTop // Add parent top position
		o = oParent
	}
	return oTop
}

function parseQuery ( query ) {
   var Params = new Object ();
   if ( ! query ) return Params; // return empty object
   var Pairs = query.split(/[;&]/);
   for ( var i = 0; i < Pairs.length; i++ ) {
      var KeyVal = Pairs[i].split('=');
      if ( ! KeyVal || KeyVal.length != 2 ) continue;
      var key = unescape( KeyVal[0] );
      var val = unescape( KeyVal[1] );
      val = val.replace(/\+/g, ' ');
      Params[key] = val;
   }
   return Params;
}

function blockEvents(evt) {
	if(evt.target) {
		evt.preventDefault();
	} else {
		evt.returnValue = false;
	}
}