/*
 * 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);

var jt_url = "";
function JT_init(){
	       $("a.jTip")
		   .hover(function(){JT_load(this.href,this.id,this.name)},function(){$('#JTCT').hide()});
//	       .click(function(){JT_load(this.href,this.id,this.name)},function(){$('#JT').remove()});
	       JT_prepare();

//           .click(function(){return false});	   
}

function JT_prepare(){
	$("body").append("<div id='JTCT' style='display:none'><div id='JT' ></div></div>");
}

function JT_load(url,linkId,title)
{	
	if(title == false)title="&nbsp;";
	var de = document.documentElement;
	var w = self.innerWidth || (de&&de.clientWidth) || document.body.clientWidth;
	var hasArea = w - getAbsoluteLeft(linkId);
	var clickElementy = getAbsoluteTop(linkId) - getElementHeight(linkId) + 10; //set y position	
	
	var queryString = url.replace(/^[^\?]+\??/,'');
	var params = parseQuery( queryString );
	if(params['width'] === undefined){params['width'] = 400};
	if(params['link'] !== undefined)
	{
		$('#' + linkId).bind('click',function(){window.location = params['link']});
		$('#' + linkId).css('cursor','pointer');
	}

	var space = 0;
	if (jt_url != url)
	{
		$("#JT").html('');
		if(hasArea>((params['width']*1)+75)){
			$("#JT").append("<div id='JT_copy'><div class='JT_loader'><div></div></div>");//right side
			var arrowOffset = getElementWidth(linkId) + 11;
			var clickElementx = getAbsoluteLeft(linkId) + arrowOffset; //set x position
			space = 11;
		}else{
			$("#JT").append("<div id='JT_arrow_right' style='left:"+((params['width']*1)+1)+"px'></div><div id='JT_copy'><div class='JT_loader'><div></div></div>");//left side
			var clickElementx = getAbsoluteLeft(linkId) - ((params['width']*1) + 15); //set x position
			space = -15;
		}	
	}

	$('#JT').css({width: params['width']*1+"px" , left: space+"px"});		
	
	$('#JTCT').show();
	$("#JTCT").hover(function(){$('#JTCT').show();},function(){$('#JTCT').hide()});
	$('#JTCT').css({width: params['width']*1+"px" , left: (clickElementx-space)+"px", top: clickElementy+"px"});		
	
	if (jt_url != url)
	{
		jt_url = url;
		$('#JT_copy').load(url,null,function()
									{
										var height = document.getElementById('JT').clientHeight;
										var cur_bottom = document.documentElement.clientHeight + document.documentElement.scrollTop;						
										if (cur_bottom < height + clickElementy )
										{
											$('#JTCT').css("top",(cur_bottom - height - 10)+"px");
										}
									}
							);
	}
	else
	{
			var height = document.getElementById('JT').clientHeight;
			var cur_bottom = document.documentElement.clientHeight + document.documentElement.scrollTop;						
			if (cur_bottom < height + clickElementy )
			{
				$('#JTCT').css("top",(cur_bottom - height - 10)+"px");
			}
	}
}

function getElementHeight(objectId) {
	x = document.getElementById(objectId).getElementsByTagName('IMG')[0];
	return x.offsetHeight;
}

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;
              }
}

function jt_redirect(url)
{
	window.location = url;
}