$.fn.clearForm = function() {
	  return this.each(function() {
	    var type = this.type, tag = this.tagName.toLowerCase();
	    if (tag == 'form' )
	      return $(':input',this).clearForm();
	    if (type == 'text' || type == 'password' || tag == 'textarea')
	      this.value = '';
	    else if (type == 'checkbox' || type == 'radio')
	      this.checked = false;
	    else if (tag == 'select')
	      this.selectedIndex = -1;
	  });
	};
	
	function serializeForm(id){
		var string="";
		$("#"+id+" input,#"+id+" textarea,#"+id+" select").each(function(){
			 string += (string==''?"":"&")+($(this).attr("name")+"="+encodeURI($(this).val()));
		});
		
		return string;
	}
	
	$.fn.image = function(src, f){ 
		   return this.each(function(){ 
		     var i = new Image(); 
		     i.src = src; 
		     i.onload = f; 
		     this.appendChild(i);
		   }); 
	 }; 
	 
	 $.fn.addAjaxLoader=function(absolute){
	    
		var w = $(this).width();
		var h = $(this).height();
		absolute = absolute==undefined?false:absolute;
		if(typeof(DIR_PREFIX) == "undefined"){
			window.DIR_PREFIX = '';
		}
		$(this).data("position",$(this).css("position"));
		if($(this).find(".ajax_loader").length==0){
			if(absolute){
				
				$(this).css("position","relative");
				$(this).prepend('<div class="ajax_loader" style="z-index:9999;position:absolute;left:0;margin:0px;padding:0px;width:'+w+'px;height:'+h+'px; background: url('+DIR_PREFIX+'images/admin/ajax-loader.gif) no-repeat center center  #FFFFFF;filter: alpha(opacity=60);opacity:0.6;display:block;"></div>');
			}
			else{
				$(this).append('<div class="ajax_loader" style="margin:0px;padding:0px;margin-top:-'+h+'px;width:'+w+'px;height:'+h+'px; background: url('+DIR_PREFIX+'images/admin/ajax-loader.gif) no-repeat center center  #FFFFFF;filter: alpha(opacity=60);opacity:0.6;display:block;"></div>');
			}
		}
		$(this).find(".ajax_loader").css({height:h+"px",width:w+"px"});
	 };
	 
	 $.fn.removeAjaxLoader=function(absolute){
		 $(this).find(".ajax_loader").remove();
		 $(this).css("position",$(this).data("position"));
	 };
	 
	 function addAjaxLoader(id,absolute){
		var w = $("#"+id).width();
		var h = $("#"+id).height();
		
		absolute = absolute==undefined?false:absolute;
		if($("#"+id+" .ajax_loader").length==0){
			if(absolute){
				$("#"+id).css("position","relative");
				$("#"+id).prepend('<div class="ajax_loader" style="z-index:9999;position:absolute;left:0;margin:0px;padding:0px;width:'+w+'px;height:'+h+'px; background: url(images/admin/ajax-loader.gif) no-repeat center center  #FFFFFF;filter: alpha(opacity=60);opacity:0.6"></div>');
			}
			else{
				$("#"+id).append('<div class="ajax_loader" style="margin:0px;padding:0px;margin-top:-'+h+'px;width:'+w+'px;height:'+h+'px; background: url(images/admin/ajax-loader.gif) no-repeat center center  #FFFFFF;filter: alpha(opacity=60);opacity:0.6"></div>');
			}
		}
	}
	
	 function removeAjaxLoader(id){
		$("#"+id+" .ajax_loader").remove();
	}
	
	 
	
	function sendForm(array_fields,rta_field,to,subject,opc){
		var sendingMsg = getTranslateEntry("sending");
		var h=$('#'+rta_field).outerHeight();
	
		var vars='opc='+(opc!=''?opc:'sendForm')+'&to='+to+'&subject='+subject;
		for(var i=0; i<array_fields.length;i++){
			vars+= "&"+array_fields[i]+"_desc="+$('#'+array_fields[i]).attr('title');
			vars+= "&"+array_fields[i]+"="+$('#'+array_fields[i]).val();
		}
		$('#'+rta_field).html("<h3>"+sendingMsg+"...</h3>");
		$('#'+rta_field).css("display","block");
		
		$.ajax({
		   async: true,
		   type: "POST",
		   url: "_ajax.php",
		   data: vars,
		   success: function(data){
		     $('#'+rta_field).html(data).fadeOut(10000,function(){$('#'+rta_field).css("display","none");});
		   }
		 });
	}
	
	function getTranslateEntry(word,async,callback,params){
		async = async==undefined?false:async;
		callback = callback==undefined?false:callback;
		params   = params ==undefined?[]:params;
		var translation="";
		$.ajax({
		   async: async,
		   type: "POST",
		   url: "_ajax.php",
		   data: "opc=translate&word="+encodeURIComponent(word),
		   success: function(data){
				translation = data;
				if(async){
					if(callback){
						params.push(translation);
						callback.apply(this,params);
					}
				}
		   }
		 });
		if(async==false){
			return translation;
		}
	}
	
	function emailCheck (emailStr) {
		var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
		return reg.test(emailStr) == false?false:true;
	}
	
	function checkDate(y,m,d){
		y=document.getElementById(y);
		m=document.getElementById(m);
		d=document.getElementById(d);
		if(m.value==2){
			if(y.value % 4==0){
				if(d.value>29){
					d.value=29;
				}
			}
			else{
				if(d.value>28){
					d.value=28;
				}
			}
	   }
	   else{
		   if(m.value==4||m.vlaue==6||m.value==9||m.value==11){
			   if(d.value>30){
				   d.value=30;
			   }
		   }
	   }	 
	}	
	
	function restrictInputLength(form_id){
		var inputs=null;
		if(form_id!='' && form_id!=undefined){
			inputs = $("#"+form_id+" input[type='text'],input[type='password'], textarea");
		}
		else{
			inputs = $("input[type='text'],input[type='password'], textarea");
			
		}
		inputs.each(function(){
			var maxlength = 0;
			
			var class_name = $(this).attr("class").split(" ");
		 	for(var i=0; i<class_name.length;i++){
				if(jQuery.trim(class_name[i]).indexOf("maxlength_")!=-1){
					maxlength = parseInt(jQuery.trim(class_name[i]).replace("maxlength_",""));
				}
			}
			
		 	if(maxlength > 0){
				$(this).keypress(function(evt){
					textCounter(this,maxlength,evt);
				});
				$(this).change(function(evt){
					textCounter(this,maxlength,evt);
				});
				
				if(document.all){
					this.onpaste = function(){
						maxLengthPaste(this,maxlength);
					};
				}
				else{
					$(this).attr("oninput",'textCounter(this,'+maxlength+',event)');
				}	
				
			}
		 	
		});	
	}
	
	function maxLengthPaste(field,maxChars){
	    event.returnValue=false;
	    if((field.value.length + window.clipboardData.getData("Text").length) > maxChars){
	       return false;
	    }
	    event.returnValue=true;
	} 
	function textCounter(field,maxlimit,evento) {
		
		var ex=new Array('8','46','37','38','39','40','116');
		if(in_array(ex,evento.keyCode)){
			return;	
		}
		if (field.value.length >= maxlimit){ // if too long...trim it!
				cancelEvent(evento);
				field.value = field.value.substring(0, maxlimit);
		}
	}		
	
	function checkTextLength(l){
		aux=new String();
		aux=event.srcElement.value;
		if(aux.length>=l){
			event.returnValue=false;
		}
	}
	
	function isCaptchaCodeCorrect(code){
		var bool =true;
		$.ajax({
			   async: false,
			   type: "GET",
			   url:  "_ajax.php",
			   data:  "opc=getCaptcha&captcha="+code,
			   success: function(data){
					if(data==0){
						 bool=false;
					}
			   }
			});
		 return bool;
	}
	
	function updateCaptcha(layer){
		
		$.ajax({
		   async: false,
		   type: "GET",
		   url:  "_ajax.php",
		   data:  "opc=updateCaptcha",
		   success: function(data){
				$(layer).replaceWith(data);
		   }
		});
	}
	
	function checkFormFields(frm,animate,animate_msg,field_font_color,field_background_color){ //(formulario, array de campos a validar,idioma,animar(1|0)?,mostrar alerta(1|0)?)
		var msg="";
		var verify = true;
		var show_alert  = false;
		$("#"+frm+" input,#"+frm+" select,#"+frm+" textarea,#"+frm+" div").each(function(){
			
			if($(this).hasClass("required")){
				
				if($(this).attr('id').indexOf('captcha')!=-1){
					verify = isCaptchaCodeCorrect($(this).val());
				}
				if( (jQuery.trim($(this).val())=='' || ($(this).attr('id').toLowerCase().indexOf('email')!=-1 && !emailCheck($(this).val())) || ($(this).attr('type')=='checkbox' && !$(this).attr('checked')) ||  ($(this).attr('id').lastIndexOf("_confirmation")!=-1 && $(this).val()!= $("#"+$(this).attr('id').replace("_confirmation","")).val()) || verify==false) && ( $(this).parents(".no_display").length==0 ) ){
					show_alert = true;
					msg=msg+"\n"+$(this).attr('title');
					if($(this).attr('type')!='checkbox' && $(this).attr('type')!='radio'){
						if(animate==1){
							if(animate_msg!=1){   
								$(this).effect("highlight", {color:"#FF0000"},1000,function(){});
							}
							else{
								$(this).css("backgroundColor","#FF0000");
								$(this).css("color","#FFFFFF");
							}
						}
					}
					if(($(this).attr('type')=='checkbox' || $(this).attr('type')=='radio') && $(this).attr('checked')!=true){
						var type = $(this).attr('type');
						/*
						var w=$(this).outerWidth();
						var	h=$(this).outerHeight();
						*/
						var w=15;
						var	h=15;
						
						var style = $(this).attr("style");
						var className = $(this).attr("class");
						var title = $(this).attr("title");
						var chk_id = "chk_"+getMicrotime();
						var div = '<div onclick="$(this).replaceWith(\'<input title=&quot;'+$(this).attr('title')+'&quot; id=&quot;'+$(this).attr('id')+'&quot;  checked=&quot;checked&quot; class=&quot;'+className+'&quot; type=&quot;'+type+'&quot;/>\');" class="'+className+'" title="'+title+'" style="background-color:#FF0000;height:'+h+'px;width:'+w+'px"></div>';
						var div = '<div id="'+chk_id+'" class="'+className+'" title="'+title+'" style="background-color:#FF0000;height:'+h+'px;width:'+w+'px"></div>';
						$(this).replaceWith(div);
						$("#"+chk_id).click(function(){
							var chk = '<input checked="checked" type="'+type+'" class="'+className+'" style="'+style+'" title="'+title+'"/>';
							$(this).replaceWith(chk);
						});
					}
					$(this).one("click", function(){
						$(this).css("backgroundColor",field_background_color);
				   		$(this).css("color",field_font_color);
				   		//$(this).val("");
					});
					$(this).one("focus", function(){
						$(this).css("backgroundColor",field_background_color);
				   		$(this).css("color",field_font_color);
				   		//$(this).val("");
					});
					$(this).one("keypress", function(){
				   		$(this).css("backgroundColor",field_background_color);
					   	$(this).css("color",field_font_color);
					   	//$(this).val("");
				   		
					});
				}	
			}
		});
	  
	   if(show_alert){
			if(animate!=1){
				msg = getTranslateEntry("complete_following_fields")+": "+msg;
		   		alert(msg);
		   	}
			else{
				if(animate_msg==1){
					showAlertMessage(getTranslateEntry("complete_required_fields"),"error",1);
				}
			}
			return false;
	   }
	   else{
			return true;
	   }	
	}	
	
	function showAlertMessage(message,icon,close_on_click){
		/* ICONS:ajax,info,alert,error */
		var img_icon="";
		close_on_click = close_on_click == '' || close_on_click == undefined  ? false: close_on_click; 
		if(icon=='ajax'){img_icon="images/admin/ajax-loader.gif";}
		else if (icon=='info'){img_icon="images/admin/icon-dialog-info.png";}
		else if (icon=='error'){img_icon="images/admin/icon-dialog-error.png";}
		else if (icon=='password'){img_icon="images/admin/icon-dialog-password.png";}
		else if (icon=='warning'){img_icon="images/admin/icon-dialog-warning.png";}
		else{img_icon="images/admin/icon-dialog-warning.png";}
		
		var html ='<div id="alert_msg" style="width:600px;background-color:#FFFFFF;border: 1px solid #999999; cursor:pointer;float:left" onclick="MySimpleLightBox.close();">';
		html+='<div style="float:left"><img style="margin:10px" src="'+img_icon+'"></div>';
		html+='<div style="float:left"><div style="color:#000;font-size:12px;padding-top:30px;">'+message+'</div></div>';
		html+='</div>';
		
		MySimpleLightBox.border='1px solid #000';
		MySimpleLightBox.loadHTML(html);
		MySimpleLightBox.bgColor="#FFFFFF";
		//$("#alert_msg").corners("5px");
		$("#lbox").bind("click",function(){
			if(close_on_click){
				MySimpleLightBox.close();
			}	
		});
		
	}
	
	function in_array(mat,field){
			var i;
			for(i=0;i<mat.length;i++){
				if(mat[i].toLowerCase()==new String(field).toLowerCase()){
					return true;
				}	
			}
			return false;	
	}
	
	function onlyIntegerInputAllowed(e){
		var keynum;
		var keychar;
		var numcheck;
		if(window.event){ // IE
			keynum = e.keyCode;
		}
		else if(e.which){ // Netscape/Firefox/Opera
			keynum = e.which;
		} 
		keychar = String.fromCharCode(keynum);
		numcheck = /\d/;
		
		if(numcheck.test(keychar)==false && keynum!=8 && keynum!=undefined){
			cancelEvent(e);
		}
	} 


	function eventTrigger (e) {
	    	if (! e) e = event;
		    return e.target || e.srcElement;
	}
		
	function cancelEvent(e){
			if(navigator.userAgent.indexOf("MSIE")!=-1){
				e.returnValue=0;	
			}
			if(navigator.userAgent.indexOf("Gecko")!=-1){
				e.preventDefault();	
			}
	}
	
	function validateExtensions(file,ext,evt){
		var auxext=new String(file);
		var extPosibles;
		for (var i=0;i<ext.length;i++){
			if(i==0){
				extPosibles=ext[i];
			}
			else{
				extPosibles += ","+ext[i];
			}
		}
		auxext=auxext.substring(auxext.lastIndexOf('.')+1);
		if(!in_array(ext,auxext)){
			cancelEvent(evt);	
		}
		else{
			return true;	
		}
	
	}
	
	function getMicrotime(){
		var micro = "";
		$.ajax({
		   async: false,
		   type: "GET",
		   url: "_ajax.php",
		   data: "opc=getMicrotime",
		   success: function(data){
		     micro = data;
		   }
		 });
		return micro;
	}
	
	function getCleanFileName(filename){
		$.ajax({
		   async: false,
		   type: "POST",
		   url: "_ajax.php",
		   data: "opc=getCleanFilename&filename="+filename,
		   success: function(data){
	   			filename=data;
		   }
		 });
		 return filename;
	}