/*
 * 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.
 */

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

function JT_init(){
	       $("a.jTip")
		   .hover(
			    function(){
			   		JT_show(this.href,this.id,this.name);
			   	},
			   	function(){
			   		$('#JT').remove();
			   	}
		   	)
           .click(
           		function(){
           			//$('#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; //set y position
	
	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_arrow_left'></div>"+
				"<div id='JT_close_left'>"+title+"</div>"+
				"<div id='JT_copy'>"+
					"<div class='JT_loader'><div></div></div>"+
				"</div>"+
			"</div>"
			);//right side
		var arrowOffset = getElementWidth(linkId) + 11;
		var clickElementx = getAbsoluteLeft(linkId) + arrowOffset; //set x position
	}else{
		$("body").append(
			"<div id='JT' style='width:"+params['width']*1+"px'>"+
				"<div id='JT_arrow_right' style='left:"+((params['width']*1)+1)+"px'></div>"+
				"<div id='JT_close_right'>"+title+"</div>"+
				"<div id='JT_copy'>"+
					"<div class='JT_loader'><div></div></div>"+
				"</div>"+
			"</div>"
			);//left side
		var clickElementx = getAbsoluteLeft(linkId) - ((params['width']*1) + 15); //set x position
	}
	
	 
	$('#JT').css({left: clickElementx+"px", top: clickElementy+"px"});
	//$('#JT').show();
	$('#JT_copy').load(url,adjustPlacement);

}

function adjustPlacement(){
	var jt = $('#JT');
	var h = jt.height();
	var o = this;
	var t = 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
		t += oParent.offsetTop // Add parent top position
		o = oParent
	}
	
	//check to see if the  height plus the top is greater than the window view port
	var de = document.documentElement;
	var portHeight = self.innerHeight || (de&&de.clientHeight) || document.body.clientHeight;
	if(h+t > portHeight){
		var top = jt.css("top");
		var topInt = new Number(top.substring(0,top.indexOf("px")));
		var titleHeight = $("#JT_close_right").height() || $("#JT_close_left").height();
		jt.css("top",topInt-h+titleHeight+"px");
		jt.css("position","absolute");
		
		$("#JT_arrow_right").css("bottom","-3px");
		$("#JT_arrow_right").css("top","auto");
		$("#JT_arrow_left").css("bottom","-3px");
		$("#JT_arrow_left").css("top","auto");
	}
	jt.show();
}

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;
              }
}