function IsDigit(){
	return ((event.keyCode >= 48) && (event.keyCode <= 57));
}
function sendMessag(obj){
	if(obj.gb_user_name.value == "" ){
		alert("Please enter your name");
		obj.gb_user_name.focus();
		return false;
	}
	if(obj.gb_user_email.value != ''){
	 if (( obj.gb_user_email.value.length<5 )||(obj.gb_user_email.value.indexOf("@")==-1)||(obj.gb_user_email.value.indexOf(".")==-1 )) {
			alert('Please enter a correct email address');
			obj.gb_user_email.select();
			return false;
		}
	}
	if(obj.gb_user_tel.value == "" ){
		alert("Please enter your numbers");
		obj.gb_user_tel.focus();
		return false;
	}
	if(obj.gb_title.value == "" ){
		alert("Please enter your subject");
		obj.gb_title.focus();
		return false;
	}
	if(obj.gb_user_content.value == "" ){
		alert("Please enter your message");
		obj.gb_user_content.focus();
		return false;
	}
	var texts  = obj.gb_user_content.value;
	var string = new String(texts);
	if(string.length > 3000 || string.length < 20){
		alert("Enter between 20 to 3,000 characters");
		obj.gb_user_content.focus();
		return false;
	}
	if(obj.sincode.value == "" ){
		alert("Please enter the code shown");
		obj.sincode.focus();
		return false;
	}
}

function setImgSize(imgID,maxWidth,maxHeight){
	var img = document.images[imgID];
	
	if(maxWidth < 1){
		if(img.height > maxHeight){
			img.height = maxHeight;
		}
		return true;
	}
	if(maxHeight < 1){
		if(img.width > maxWidth){
			img.width = maxWidth;
		}
		return true;
	}
	if(img.height > maxHeight || img.width > maxWidth){
		if((img.height / maxHeight) > (img.width / maxWidth)){
			img.height = maxHeight;
		}else{
			img.width = maxWidth;
		}
		return true;
	}
} 

var defaultMessage=new Array('请输入搜索内容','请输入查询信息')
function clearDefault(my_obj){
	var ret=false;
	for(var i=0;i<defaultMessage.length;i++){
		if(my_obj.value==defaultMessage[i])
			ret=true;
	}
	if(ret)
		my_obj.value=""
}

function chkserch(){
  var searchkey=document.searchfrm.searchkey.value;
  if (searchkey==""||searchkey=="请输入搜索内容"){
	document.searchfrm.searchkey.focus();
	return false;
  }
}

function AJAX(G){var K=[],$=this,L=AJAX.__pool__||(AJAX.__pool__=[]);(function(E){var D=function(){};E=E?E:{};var C=["url","content","method","async","encode","timeout","ontimeout","onrequeststart","onrequestend","oncomplete","onexception"],A=["","","GET",true,I("UTF-8"),3600000,D,D,D,D,D],B=C.length;while(B--)$[C[B]]=_(E[C[B]],A[B]);if(!N())return false})(G);function _(_,$){return _!=undefined?_:$}function N(){var A,$=[window.XMLHttpRequest,"MSXML2.XMLHTTP","Microsoft.XMLHTTP"];for(var B=0;B<L.length;B+=1)if(L[B].readyState==0||L[B].readyState==4)return L[B];for(B=0;B<$.length;B+=1){try{A=($[B]&&typeof($[B])=="function"?new $[B]:new ActiveXObject($[B]));break}catch(_){A=false;continue}}if(!A){throw"Cannot init XMLHttpRequest object!";return false}else{L[L.length]=A;return A}}function E($){return document.getElementById($)}function C($){var _=$*1;return(isNaN(_)?0:_)}function D($){return(typeof($)=="string"?($=E($))?$:false:$)}function F(){return((new Date)*1)}function M($,_){K[$+""]=_}function H($){return(K[$+""])}function J(_,$,B){return(function A(C){C=C.replace(/([^\u0080-\u00FF]+)/g,function($0,$1){return _($1)}).replace(/([\u0080-\u00FF])/g,function($0,$1){return escape($1).replace("%","%u00")});for(var E=0,D=$.length;E<D;E+=1)C=C.replace($[E],B[E]);return(C)})}function I($){if($.toUpperCase()=="UTF-8")return(encodeURIComponent);else return(J(escape,[/\+/g],["%2B"]))}function O(A,B){if(!A.nodeName)return;var _="|"+A.nodeName.toUpperCase()+"|";if("|INPUT|TEXTAREA|OPTION|".indexOf(_)>-1)A.value=B;else{try{A.innerHTML=B}catch($){}}}function P(_){if(typeof(_)=="function")return _;else{_=D(_);if(_)return(function($){O(_,$.responseText)});else return $.oncomplete}}function B(_,A,$){var C=0,B=[];while(C<_.length){B[C]=_[C]?($[C]?$[C](_[C]):_[C]):A[C];C+=1}while(C<A.length){B[C]=A[C];C+=1}return B}function A(){var E,C=false,K=N(),J=B(arguments,[$.url,$.content,$.oncomplete,$.method,$.async,null],[null,null,P,null,null,null]),G=J[0],I=J[1],L=J[2],M=J[3],H=J[4],A=J[5],O=M.toUpperCase()=="POST"?true:false;if(!G){throw"url is null";return false}var _={url:G,content:I,method:M,params:A};if(!O)G+=(G.indexOf("?")>-1?"&":"?")+"timestamp="+F();K.open(M,G,H);$.onrequeststart(_);if(O)K.setRequestHeader("Content-Type","application/x-www-form-urlencoded");K.setRequestHeader("X-Request-With","XMLHttpRequest");E=setTimeout(function(){C=true;K.abort()},$.timeout);var D=function(){if(C){$.ontimeout(_);$.onrequestend(_)}else if(K.readyState==4){clearTimeout(E);_.status=K.status;try{if(K.status==200)L(K,A);else $.onexception(_)}catch(B){$.onexception(_)}$.onrequestend(_)}};K.onreadystatechange=D;if(O)K.send(I);else K.send("");if(H==false)D();return true}this.setcharset=function(_){if(!$.encode)$.encode=I(_)};this.get=function(C,B,_){return A(C,"",B,"GET",$.async,_)};this.update=function(H,J,_,D,E){_=C(_);D=C(D);if(_<1)D=1;var B=function(){A(J,"",H,"GET",$.async,E)},G=F(),I=function($){B();$--;if($>0)M(G,setTimeout(function(){I($)},_))};I(D);return G};this.stopupdate=function($){clearTimeout(H($))};this.post=function(D,_,C,B){return A(D,_,C,"POST",$.async,B)};this.postf=function(O,J,B){var H=[],L,_,G,I,M,K=arguments.length,C=arguments;O=O?D(O):false;if(!O||O.nodeName!="FORM")return false;validfoo=O.getAttribute("onvalidate");validfoo=validfoo?(typeof(validfoo)=="string"?new Function(validfoo):validfoo):null;if(validfoo&&!validfoo())return false;var E=O.getAttribute("action"),N=O.getAttribute("method"),F=$.formToStr(O);if(F.length==0)return false;if(N.toUpperCase()=="POST")return A(E,F,J,"POST",true,B);else{E+=(E.indexOf("?")>-1?"&":"?")+F;return A(E,"",J,"GET",true,B)}};this.formToStr=function(C){var B="",E="",_,A;for(var D=0;D<C.length;D+=1){_=C[D];if(_.name!=""){switch(_.type){case"select-one":if(_.selectedIndex>-1)A=_.options[_.selectedIndex].value;else A="";break;case"checkbox":case"radio":if(_.checked==true)A=_.value;break;default:A=_.value}A=$.encode(A);B+=E+_.name+"="+A;E="&"}}return B}}
//-------------------------------------------------------

function $(id){
	return document.getElementById(id)	
}

function checkAll(bool,tagname,name){
	var checkboxArray;checkboxArray=getElementsByName(tagname,name)
	for (var i=0;i<checkboxArray.length;i++){checkboxArray[i].checked = bool;}
}

function checkOthers(tagname,name){
	var checkboxArray;checkboxArray=getElementsByName(tagname,name)
	for (var i=0;i<checkboxArray.length;i++){
		if (checkboxArray[i].checked == false){
			checkboxArray[i].checked = true;
		}else if (checkboxArray[i].checked == true){
			checkboxArray[i].checked = false;
		}
	}
}

function textareasize(obj){
	if(obj.scrollHeight > 70){
		obj.style.height = obj.scrollHeight + 'px';
	}
}

function set(obj,value){
	obj.innerHTML = value
}