/*
 * jquery.watermark.js
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
 * NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 * USE OR OTHER DEALINGS IN THE SOFTWARE.
 * 
 */
(function($) {
	
	$.clearwatermarks = function() {
		$("[wmwrap='true']").find("input,textarea").watermark({remove:true});
	};
	
	$.addwatermarks = function() {
		$("[watermark != '']").each(function(num,el) {
			$(el).watermark($(el).attr("watermark"));
		});
	};
	
	$.watermark = function(o) {
		o.el = $(o.el);
		if(o.remove) {
			if(o.el.parent().attr("wmwrap") == 'true') {
				o.el.parent().replaceWith(o.el);
			}
		} else {
			if(o.el.parent().attr("wmwrap") != 'true') {
				o.el = o.el.wrap("<span wmwrap='true' style='position:relative;'/>");
				var l = $("<label/>");
				
				if(o.html) { l.html(o.html); }
				if(o.cls) { l.addClass(o.cls); }
				if(o.css) { l.css(o.css); }
				
				l.css({position:"absolute",left:"3px",display:"inline",cursor:"text"});
				if(!o.el.is("textarea")) { l.css({top:($.browser.mozilla)?"0px" : "2px"}); }
				
				if(!o.cls && !o.css) {
					l.css("color","#ccc");
				}
				
				var focus = function() {
					l.hide();
				};
				
				var blur = function() {
					if(o.el.val() == "") {
						l.show();
					} else {
						l.hide();
					}
				};
				
				var click = function() {
					o.el.focus();
				};
				
				if(o.inherit) {
					if(typeof o.inherit == "string") {
						l.css(o.inherit,o.el.css(o.inherit));
					} else {
						for(var x=0;x<o.inherit.length;x++) {
							l.css(o.inherit[x],o.el.css(o.inherit[x]));
						}
					}
				}
				
				o.el.focus(focus).blur(blur);
				l.click(click);
				o.el.before(l);
				if($.browser.mozilla && o.el.is("textarea")) { o.el.focus().blur();  }
				if(o.el.val() != "") { l.hide(); }
			}
		}
		return o.el;
	};
	
	$.fn.watermark = function(o) {
		return this.each(function() {
			if(typeof(o) == "string") {
				try {o = eval("(" + o + ")");} catch(ex) {o = {html:o};}
			}
			o.el = this;
			return $.watermark(o);
		});
	};
})(jQuery);