/*
 * 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(){return false});
}

function JT_show(elm, width) {
	if($("#JT").length>0) return;
	var title = $(elm).attr('tttitle');
	title = (title) ? title : ' ';
	var content = $(elm).attr('ttcontent');
	content = (content) ? content : $(elm).attr('title');
	if(content==undefined) return;

    if($(elm).attr('title')!=undefined) {
        $(elm).attr('_title', $(elm).attr('title'));
        $(elm).removeAttr('title');
    }

	var de = document.documentElement;
	var w = self.innerWidth || (de&&de.clientWidth) || document.body.clientWidth;
	var hasArea = w - getAbsoluteLeft(elm);
	var clickElementy = getAbsoluteTop(elm) - 3; //set y position
	
	if(hasArea>(width+75)){
		$("body").append("<div id='JT' style='width:"+width+"px'><div id='JT_arrow_left'></div><div id='JT_close_left'>"+title+"</div><div id='JT_copy'></div></div>");//right side
		var arrowOffset = getElementWidth(elm) + 11;
		var clickElementx = getAbsoluteLeft(elm) + arrowOffset; //set x position
	} else {
		$("body").append("<div id='JT' style='width:"+width+"px'><div id='JT_arrow_right' style='left:"+(width+1)+"px'></div><div id='JT_close_right'>"+title+"</div><div id='JT_copy'></div></div>");//left side
		var clickElementx = getAbsoluteLeft(elm) - (width + 15); //set x position
	}
	
	$('#JT').css({left: clickElementx+"px", top: clickElementy+"px"});
	$('#JT').show();
	if(content) 
	    $('#JT_copy').html(content);
	else
	    $('#JT_copy').load(url);
}

function getElementWidth(elm) {
	return elm.offsetWidth;
}

function getAbsoluteLeft(elm) {
	// Get an object left position from the upper left viewport corner
	o = elm;
	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(elm) {
	// Get an object top position from the upper left viewport corner
	o = elm;
	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 blockEvents(evt) {
              if(evt.target){
              evt.preventDefault();
              }else{
              evt.returnValue = false;
              }
}