/*
 *jquery.msgbox
 */
(function($){
	$.msgbox=function(o){
		if(typeof(o)=='string'){o={content:o}}
		var options=o||{};
		options.width=o.width||360;  
		options.height=o.height||200,
		options.closeAfter=o.closeAfter||0;
		options.title=o.title||'系统提示',
		options.wrapperClass=o.wrapperClass||'msgbox_wrapper';
		options.titleClass=o.titleClass||'msgbox_title';
		options.titleWrapperClass=o.titleWrapperClass||'msgbox_title_wrapper';
		options.mainClass=o.mainClass||'msgbox_main';
		options.bgClass=o.bgClass||'msgbox_bg';
		options.buttonClass=o.buttonClass||'msgbox_button';
		options.type=o.type||'text';
		options.content=o.content||'Hello,world!';
		options.closeEvent=o.closeEvent||function(){};
		options.closeImg=o.closeImg||'/template/W0001/msgbox/close.gif';
		options.bgOpacity=o.bgOpacity||0.3;
		options.afterAjaxEvent=o.afterAjaxEvent||function(){};
		options.oneBoxMode=typeof(o.oneBoxMode)=='undefined'?true:o.oneBoxMode;
		options.hideScrollBar=typeof(o.hideScrollBar)=='undefined'?false:o.hideScrollBar;
		var dragFlag=false;
		var startX=0;
		var startY=0;
		var returnValue=false;
		//$obj("_iWinShield"+iRnd+"").style.filter="alpha(Opacity='"+this._Alpha*100+"')";
		var $background=$("<div>")
			.css({'position':'absolute','top':'0','left':'0','z-index':'9999'})
			.addClass(options.bgClass)
			.appendTo('body')
			.animate({opacity:options.bgOpacity})
			.dblclick(closeMe)
			.click(function(){flashTitle(0.5,4,80);})
			.mouseup(dragEnd);
			
		// help IE users if possible
		//try{
		//	$background.bgiframe();
		//}catch(e){}	
		
		var $wrapper=$("<div>")
			.css({'width':options.width+'px','height':options.height+'px','position':'absolute','z-index':'10000'})
			.addClass(options.wrapperClass)
			.appendTo('body')
			.mouseup(dragEnd);
		var $titleWrapper=$('<table width=100% cellspacing=0 cellpadding=0><tr><td></td><td name=\"msgclose\"><a  href="javascript:;">关闭</a></td></tr></table>')
			.css({'cursor':'move','vertical-align':'middle'})
			.addClass(options.titleWrapperClass)
			.appendTo($wrapper)
			.mousedown(function(e){dragStart(e);})
			.mousemove(function(e){if(dragFlag)dragTo(startX,startY,e);})
			.mouseout(function(e){if(dragFlag)dragTo(startX,startY,e);})
			.mouseup(dragEnd);
		var $titleTd=$("td",$titleWrapper).eq(0)
			.html(options.title)
			.addClass(options.titleClass)
			.mouseup(dragEnd);
		var $closeA=$titleTd.next()
			.attr('align','right')
			.find("a")
			.mousedown(closeMe)
			.html("<img src="+options.closeImg+" border=0 />");
		var $main=$(document.createElement("div"))
			.addClass(options.mainClass)
			.appendTo($wrapper);
		$main.height(
			options.height 
				- $titleWrapper.outerHeight(true)
				- $main.outerHeight(true)
				+$main.height()
			)
			.mouseup(dragEnd);
		function closeMe(){
			$('select').css('visibility','visible');
			if(options.hideScrollBar)
				$('body').css('overflow','auto'); 
			$wrapper.fadeOut();
			$background.fadeOut();
			options.closeEvent(returnValue);
	}
		function isVisible(){
			return	$background.is(":visible")&&
					$wrapper.is(":visible");
	}
		function autoCloseMe(closeAfter){			
			if(closeAfter>0&&isVisible()){
				autoCloseStr=closeAfter+" 秒后关闭 ...";
				$titleTd.html(options.title+" &nbsp; "+autoCloseStr);	
				closeAfter --;
				if(closeAfter==0) 
					closeMe();
				setTimeout(function(){autoCloseMe(closeAfter)},1000);
}		
	}
		function dragStart(e){			
			if(e.preventDefault)
				e.preventDefault(); 
			if(e.stopPropagation())
				e.stopPropagation();		
			dragFlag=true;
			var offset=$wrapper.offset();
			startX=e.pageX-offset.left;startY=e.pageY-offset.top;			
	}
		function dragTo(x,y,e){		
			if(e.preventDefault)
				e.preventDefault(); 
			if(e.stopPropagation())
				e.stopPropagation();		
			ensureMoveInScreen(e.pageX-x,e.pageY-y);
	}
		function ensureMoveInScreen(x,y){		
			var offset=$wrapper.offset();
			if(x<$(window).scrollLeft()) boxMoveTo($(window).scrollLeft(),y);
			if(y<$(window).scrollTop()) boxMoveTo(x,$(window).scrollTop());
			if(offset.left>$(window).scrollLeft()+$(window).width()-options.width) 
				boxMoveTo($(window).scrollLeft()+$(window).width()-options.width,y);
			if(offset.top>$(window).scrollTop()+$(window).height()-options.height)
				boxMoveTo(x,$(window).scrollTop()+$(window).height()-options.height);
			if(x>=$(window).scrollLeft()&&x<=$(window).scrollLeft()+$(window).width()-options.width&&
				y>=$(window).scrollTop()&&y<=$(window).scrollTop()+$(window).height()-options.height)
				boxMoveTo(x,y);	
	}
		function boxMoveTo(x,y){
			$wrapper.css({'top':y+'px','left':x+'px'});	
	}
		function dragEnd(){					
			var offset=$wrapper.offset();ensureMoveInScreen(offset.left,offset.top);dragFlag=false;
	}
		function resetPosition(){
			$background.css({'width':document.documentElement.scrollWidth+'px','height':Math.max(document.documentElement.scrollHeight,$('body').outerHeight())+'px'
});
			$wrapper.css({'top':$(window).scrollTop()+($(window).height()-options.height)/2+'px','left':$(window).scrollLeft()+($(window).width()-options.width)/2+'px'});
	}
		function flashTitle(opacity,times,interval,flag){
			if(times>0){
				flag=!flag;op=flag?opacity:1;$titleWrapper.css('opacity',op);setTimeout(function(){flashTitle(opacity,times-1,interval,flag)},interval);
}
	}
		function bindIframeMouseup(index){
			try{
				window.frames[index].document.onmouseup=dragEnd;
}catch(e){}
			setTimeout(function(){bindIframeMouseup(index)},200);
	}
		/*
		function oneBox(){
			if(self!=top&&options.oneBoxMode){
				$background.remove();
				$wrapper.remove();
				$('body').html($main);
}		
	}*/
		function msgbox(){
			$('select').css('visibility','hidden');
			if(options.hideScrollBar)
				$('body').css('overflow','hidden'); 
				
			switch(options.type){
				case 'text':
					$main.html(options.content);
					break;
				case 'alert':
					$main.html(options.content);
					var $buttonWrapper=$("<div>")
						.css({'text-align':'center','padding':'15px 0'})
						.appendTo($main);
					var $OKButton=$("<input type=button value='确认'>")
						.appendTo($buttonWrapper)
						.addClass(options.buttonClass)
						.click(closeMe);
					break;
				case 'confirm':
					$main.html(options.content);
					var $buttonWrapper=$("<div>")
						.css({'text-align':'center','padding':'15px 0'})
						.appendTo($main);
					var $yesButton=$("<input type=button value='确认'>")
						.appendTo($buttonWrapper)
						.addClass(options.buttonClass)
						.after("&nbsp;&nbsp;")
						.click(function(){returnValue=true;closeMe();});
					var $noButton=$("<input type=button value='取消'>")
						.appendTo($buttonWrapper)
						.addClass(options.buttonClass)
						.click(function(){returnValue=false;closeMe();});
					break;
				case 'get':
					$main.text("数据加载中...").load(options.content,'',function(data){(options.afterAjaxEvent)(data);});
					break;	
				case 'post':
					$main.text("数据加载中...").load(options.content,'',function(data){(options.afterAjaxEvent)(data);});
					break;	
				case 'url':
					$main.text("数据加载中...").load(options.content,'',function(data){(options.afterAjaxEvent)(data);});
					break;		
				case 'iframe':
					if(self!=top&&options.oneBoxMode){
						$background.remove();$wrapper.remove();
						setTimeout(function(){window.location.href=options.content;},1);
	}else{
						var $iframe=$("<iframe frameborder=0 marginheight=0 marginwidth=0></iframe>")
							.appendTo($main)
							.attr({'width':'100%','height':'100%','scrolling':'auto','src':options.content});
						$iframe.find(document)
							.ready(function(){var index=$("iframe").index($iframe);bindIframeMouseup(index);});			
	}
					break;
}	
	}
		resetPosition();
		$(window)
			.load(resetPosition)
			.resize(resetPosition)
			.mouseup(dragEnd);
		if(options.closeAfter>0) 
			autoCloseMe(options.closeAfter);
		msgbox();
		return this;
}			
})(jQuery);