/* 
 * 
 * Copyright (c) 2009 C. F., Wong (<a href="http://cloudgen.w0ng.hk">Cloudgen Examplet Store</a>) 
 * Licensed under the MIT License: 
 * http://www.opensource.org/licenses/mit-license.php 
 *  
 * See details in: <a href="http://cloudgen.w0ng.hk/javascript/javascript.php">Javascript Examplet</a> 
 * 
 */ 
(function($){ 
	var className="DefaultText"; 
	function DefaultText(target){ 
		if(target) { 
			this.init(target); 
			if(!this.target.data("init"))  
				this.target.data("init",[]); 
			this.target.data("init").push(function(e){ 
				new DefaultText(e); 
			}); 
		} 
	} 
	DefaultText.prototype.init=function(target){ 
		this.className=className; 
		this.target=$(target).data(className,this); 
		this.defaultText=""+this.target.attr("rel"); 
		if(this.isDefault())  
			this.setDefault(); 
		else  
			this.setNormal(); 
		this.seed=Math.round(Math.random()*10000); 
		this.target.addClass(className+this.seed) 
		.closest("form").submit(function(){ 
			$("input:text",this).each(function(){ 
				if(typeof $(this).data(className)!="undefined"  
				&& $(this).data(className).isDefault())  
					$(this).data(className) 
					.clear(); 
			}) 
		}) 
	} 
	DefaultText.prototype.setDefault=function(){ 
		this.target 
		.css({color:"#AAA"}) 
		.val(this.defaultText); 
	}; 
	DefaultText.prototype.setNormal=function(){ 
		this.target 
		.css({color:"#000"}); 
	}; 
	DefaultText.prototype.clear=function(){ 
		if(this.target.attr("value")==this.target.attr("rel")) 
			this.target 
			.css({color:"#000"}) 
			.attr("value","") 
	}; 
	DefaultText.prototype.isDefault=function(){ 
		return (this.target.attr("value")==this.target.attr("rel")  
			|| this.target.attr("value")=="") 
	}; 
	DefaultText.prototype.live=function(){ 
		if (!this.goLive){ 
			$("."+className+this.seed) 
			.live("click",function(){ 
				if(!$(this).data(className)) new DefaultText(this); 
				$(this) 
				.unbind("blur") 
				.blur(function(){ 
					if($(this).data(className).isDefault())  
						$(this).data(className) 
						.setDefault(); 
					else  
						$(this).data(className) 
						.setNormal(); 
				}) 
				.data(className) 
				.clear(); 
			}).live("keydown",function(){ 
				if(!$(this).data(className)) new DefaultText(this); 
				$(this) 
				.unbind("blur") 
				.blur(function(){ 
					if($(this).data(className).isDefault())  
						$(this).data(className) 
						.setDefault(); 
					else  
						$(this).data(className) 
						.setNormal(); 
				}) 
				.data(className) 
				.clear(); 
			}); 
			this.goLive=true; 
		} 
		return this 
	}; 
	$.fn.addDefaultText=function(){ 
		this.each(function(){ 
			new DefaultText(this).live(); 
		}); 
		return this 
	}; 
})(jQuery);