/**

 * weetips.js

 *

 * @category   javascript

 * @package    jquery

 * @author     Jack <xiejinci@gmail.com>

 * @version    

 */

var weetips = function() {

	var self = this;

	$('<style id="weetipsstyle" type="text/css">'	+ 

			'#weetips{'	+ 

				'border:1px solid #FFBA43;' +

				'z-index:65535;'	+ 

				'position:absolute;' + 

				'background:#FDFFCE;' + 

				'color:#ff6600;' + 

				'padding:5px 10px;'	+

			'}'	+ 

			'#weetips-content{' +

				'text-align:left;'+

				'word-break:break-all;'+

			'}'+

		  '</style>').appendTo('body');

	$('<div id="weetips"><div id="weetips-content"></div><div style="both:clear"></div></div>').appendTo('body').hide();

	this.init = function() {		

		$(".weetips").each(function(){

			if ($(this).attr("title")) {

				$(this).attr("msg", $(this).attr("title")).removeAttr('title');

			}

			var msg = $(this).attr('msg');

			if ($.trim(msg) == '') {

				$(this).removeClass("weetips");

			}	

		});

		$(".weetips").mouseover(function(event) {

			var msg = $(this).attr('msg');

			if ($.trim(msg) == '') {return false;}

			$('#weetips-content').html(msg);

			var width = parseInt("0"+$(this).attr('bwidth'), 10);

			if (width) {

				$('#weetips-content').css("width", width).css("overflow", "hidden").css("white-space", "normal");

			} else {

				$('#weetips-content').css("width", "").css("overflow", "").css("white-space", "nowrap");

			}

			self.setPosition(event);

		}).mousemove(function(event){

			self.setPosition(event);

		}).mouseout(function() {

			$('#weetips').hide();

		});	

	}

	

	this.setPosition = function(event) {

		var left = self.getLeft(event);

		var top = self.getTop(event);			

		$('#weetips').css({left:left, top:top}).show();

	}

	

	this.getLeft = function(event) {

		var docWidth = document.documentElement.clientWidth || document.body.clientWidth;

		var docLeft = document.documentElement.scrollLeft|| document.body.scrollLeft;

		var docRight = docLeft + docWidth;

		var left = docLeft+event.clientX;

		if (left+$('#weetips').width()+38 >= docRight) {

			left = Math.min(left - 10 - $('#weetips').width(), docRight-$('#weetips').width()-38);

		} else {

			left += 10;

		}

		return left;

	}

	

	this.getTop = function(event) {			

		var docHeight = document.documentElement.clientHeight|| document.body.clientHeight;

		var docTop = document.documentElement.scrollTop|| document.body.scrollTop;

		var docBottom = docTop + docHeight;

		var top = docTop+event.clientY;

		if (top+$('#weetips').height()+10 >= docBottom) {

			top = top - 10 - $('#weetips').height();

		} else {

			top = top + 10;

		}

		return top;

	}

	this.init();

};

var $weetips = null;

$(document).ready(function(){

	$weetips = new weetips();

	$weetips.init();

});