function getobj(lsobj){
	if(typeof(lsobj)=="object")return lsobj;
	return document.getelementbyid(lsobj);
}
function isnullstr(lsvalue){
	if(lsvalue==null || lsvalue=="") return true;
	else return false;
}
function trim(lsvalue){
	if(lsvalue==null || lsvalue=="") return "";
	return lsvalue.replace(/(^\s*)|(\s*$)/g, "");
}
//判断是否为空
function checkempty(lsobj,lslabel){
	var loobj = getobj(lsobj);
	if(loobj==null){alert("没有找到对象"+lsobj+"组件！");return false;}
	var lsvalue = trim(loobj.value);
	if(lsvalue==""){
	  var lomsgdiv=getobj("msg_"+lsobj);
	  if(lomsgdiv!=null){
	  	lomsgdiv.innerhtml="<font color=red>请输入"+lslabel+"！</font>";
	  }else{
	    alert("请输入"+lslabel+"！");
	    getobj(lsobj).focus();
	  }
	  return false;
	  }else{
	  var lomsgdiv=getobj("msg_"+lsobj);
	  	if(lomsgdiv!=null){
	  		lomsgdiv.innerhtml="<font color=blue>通过</font>";
	  	}
	  }
	return true;
}
//判断是否是整型
function checkint(lsobj,lslabel){
	var loobj = getobj(lsobj);
	if(loobj==null){alert("没有找到对象"+lsobj+"组件！");return false;}
	var lsvalue = trim(loobj.value);
	if(isnullstr(lsvalue)) return true;
	var lomsgdiv=getobj("msg_"+lsobj);
	if(isnan(lsvalue)){
		 if(lomsgdiv!=null){
		  	lomsgdiv.innerhtml="<font color=red>请确保"+lslabel+"的输入格式正确！</font>";
		 }else{
			alert("请确保"+lslabel+"的输入格式正确！");
			getobj(lsobj).focus();
		  }
			return false;
	}
	return true;	
}
//判断是否是数字
function checknum(lsobj,lslabel){
	var loobj = getobj(lsobj);
	if(loobj==null){alert("没有找到对象"+lsobj+"组件！");return false;}
	var lsvalue = trim(loobj.value);
	if(isnullstr(lsvalue)) return true;
	var lomsgdiv=getobj("msg_"+lsobj);
	if(isnan(lsvalue)){
		 if(lomsgdiv!=null){
		  	lomsgdiv.innerhtml="<font color=red>请确保"+lslabel+"的输入格式正确！</font>";
		 }else{
			alert("请确保"+lslabel+"的输入格式正确！");
			getobj(lsobj).focus();
		  }
			return false;
	}
	return true;	
}

//检测只能是26个大小写英文字母和数字的函数
function checknumabc(lsobj,lslabel){
	var loobj = getobj(lsobj);
	if(loobj==null){alert("没有找到对象"+lsobj+"组件！");return false;}
	var lsvalue = trim(loobj.value);
	if(isnullstr(lsvalue)) return true;
	var lomsgdiv=getobj("msg_"+lsobj);
	if(!isnumabc(lsvalue)){
		 if(lomsgdiv!=null){
		  	lomsgdiv.innerhtml="<font color=red>请确保"+lslabel+"的输入格式为英文字字母或数字！</font>";
		 }else{
			alert("请确保"+lslabel+"的输入格式为英文字字母或数字！");
			getobj(lsobj).focus();
		  }
			return false;
	}
	return true;	
}
//限制字符个数
function checklength(lsobj,lslabel,maxlen){
	var loobj = getobj(lsobj);
	if(loobj==null){alert("没有找到对象"+lsobj+"组件！");return false;}
	var lsvalue = loobj.value;
	if(isnullstr(lsvalue)) return true;
	var lomsgdiv=getobj("msg_"+lsobj);
	if(lsvalue.length>maxlen){
	     if(lomsgdiv!=null){
		  	lomsgdiv.innerhtml="<font color=red>请确保"+lslabel+"的内容长度不超过"+maxlen+"个汉字！</font>";
		 }else{
			alert("请确保"+lslabel+"的内容长度不超过"+maxlen+"个汉字！");
			getobj(lsobj).focus();
		}
		
		return false;
	}
	return true;
}
//限制字符最小个数
//限制字符最小个数
function checkminlength(lsobj,lslabel,minlen){
	var loobj = getobj(lsobj);
	if(loobj==null){alert("没有找到对象"+lsobj+"组件！");return false;}
	var lsvalue = loobj.value;
	if(isnullstr(lsvalue)) return true;
	var lomsgdiv=getobj("msg_"+lsobj);
	if(lsvalue.length<minlen){
	     if(lomsgdiv!=null){
		  	lomsgdiv.innerhtml="<font color=red>请确保"+lslabel+"的内容长度不小于"+minlen+"个字符！</font>";
		 }else{
			alert("请确保"+lslabel+"的内容长度不小于"+minlen+"个字符！");
			getobj(lsobj).focus();
		}
		
		return false;
	}
	return true;
}

//限制最小值
function checkbig(lsobj,lslabel,lsstand){
	var loobj = getobj(lsobj);
	if(loobj==null){alert("没有找到对象"+lsobj+"组件！");return false;}
	var lsvalue = loobj.value;
	if(isnullstr(lsvalue)) return true;
	var lomsgdiv=getobj("msg_"+lsobj);
	if(lsvalue<=lsstand){
	    if(lomsgdiv!=null){
		  	lomsgdiv.innerhtml="<font color=red>请确保"+lslabel+"的数据大于"+lsstand+"！</font>";
		 }else{
			alert("请确保"+lslabel+"的数据大于"+lsstand+"！");
			getobj(lsobj).focus();
		}
		return false;
	}
	return true;
}
//判断在该范围的字符之内
function checkin(lsobj,lslabel,lsrange){
	var loobj = getobj(lsobj);
	if(loobj==null){alert("没有找到对象"+lsobj+"组件！");return false;}
	var lsvalue = trim(loobj.value);
	if(lsrange===null || lsrange=="") return true;
	var bwrong = false;
	for(var i=0;i<lsvalue.length;i++){
		var ichar = lsvalue.charat(i);
		if(lsrange.indexof(ichar)<0){
			bwrong = true;
			break;
		}
	}
	var lomsgdiv=getobj("msg_"+lsobj);
	if(bwrong){
	     if(lomsgdiv!=null){
		  	lomsgdiv.innerhtml="<font color=red>请确保"+lslabel+"的输入格式正确！</font>";
		 }else{
	    	alert("请确保"+lslabel+"的输入格式正确！");
	    	getobj(lsobj).focus();
	    }
	    return false;
	 }
	return true;	
}
//判断邮箱
function checkemail(lsobj,lslabel){
	var loobj = getobj(lsobj);
	if(loobj==null){alert("没有找到对象"+lsobj+"组件！");return false;}
	var stremail = loobj.value;
	if(isnullstr(stremail)) return true;
	var msgobj = getobj("msg_"+lsobj);
	if(isnullstr(stremail)){
		if(msgobj!=null){msgobj.innerhtml="<font color=red>请输入"+lslabel+"！</font>";}else{alert("请输入"+lslabel+"！");}
		return false;
	}
	if (stremail.search(/^\w+((-\w+)|(\.\w+))*\@[a-za-z0-9]+((\.|-)[a-za-z0-9]+)*\.[a-za-z0-9]+$/) != -1){var lomsgdiv=getobj("msg_"+lsobj);if(lomsgdiv!=null){lomsgdiv.innerhtml="<font color=blue>通过</font>";}return true;}
	if(msgobj!=null){msgobj.innerhtml="<font color=red>请确保"+lslabel+"的格式输入正确！</font>";}else{alert("请确保"+lslabel+"的格式输入正确！");getobj(lsobj).focus();}
}
//清除
function clearvalue(lsobj,lsdefaultvalue){
	var loobj = getobj(lsobj);
	if(loobj==null){alert("没有找到对象"+lsobj+"组件！");return false;}
	var lsvalue = trim(loobj.value);
	if(lsdefaultvalue==lsvalue){
		loobj.value="";
	}
}
function fullinvalue(lsobj,lsdefaultvalue){
	var loobj = getobj(lsobj);
	var lsvalue = trim(loobj.value);
	if(lsvalue!=""){return ;}else{loobj.value="请输入搜索关键字或词！";}
}
//两个控件输入内容是否一致
function checkeq(lsobj,lsobj2,lslabel,lslabel2){
	var loobj = getobj(lsobj);
	if(loobj==null){alert("没有找到对象"+lsobj+"组件！");return false;}
	var loobj2 = getobj(lsobj2);
	if(loobj2==null){alert("没有找到对象"+lsobj2+"组件！");return false;}
	var lsvalue = loobj.value;
	var lsvalue2 = loobj2.value;
	if(isnullstr(lsvalue)&&isnullstr(lsvalue2))return true;
	var msgobj = getobj("msg_"+lsobj);
	if(isnullstr(lsvalue)){
		if(msgobj!=null){msgobj.innerhtml="<font color=red>请输入"+lslabel+"！</font>";}else{alert("请输入"+lslabel+"！");}
		return false;
	}
	if(lsvalue!=lsvalue2){if(msgobj!=null){msgobj.innerhtml="<font color=red>请确保"+lslabel+"的输入与"+lslabel2+"保持一致！</font>";}else{alert("请确保"+lslabel+"的输入与"+lslabel2+"保持一致！");getobj(lsobj).focus();}return false;}
	else if(lsvalue2!=null && lsvalue2!=""){var lomsgdiv=getobj("msg_"+lsobj);if(lomsgdiv!=null){lomsgdiv.innerhtml="<font color=blue>通过</font>";}}
	return true;
}
function checklesslen(lsobj,lslabel,lesslen){
	var loobj = getobj(lsobj);
	if(loobj==null){alert("没有找到对象"+lsobj+"组件！");return false;}
	var lsvalue = trim(loobj.value);
	if(lsvalue==null || lsvalue==""){var lomsgdiv=getobj("msg_"+lsobj);if(lomsgdiv!=null){lomsgdiv.innerhtml="<font color=red>请输入"+lslabel+"！</font>";}else{alert("请输入"+lslabel+"！");getobj(lsobj).focus();}return false;}
	if(lsvalue.length<lesslen){var lomsgdiv=getobj("msg_"+lsobj);if(lomsgdiv!=null){lomsgdiv.innerhtml="<font color=red>"+lslabel+"的长度不能少于"+lesslen+"位！</font>";}else{alert(""+lslabel+"的长度不能少于"+lesslen+"位！");getobj(lsobj).focus();}return false;}
	else{var lomsgdiv=getobj("msg_"+lsobj);if(lomsgdiv!=null){lomsgdiv.innerhtml="<font color=blue>通过</font>";}}
	return true;
}
function checkbigdate(lsobj,lsobj2,lslabel,lslabel2){
    var loobj = getobj(lsobj);
	if(loobj==null){alert("没有找到对象"+lsobj+"组件！");return false;}
	var loobj2 = getobj(lsobj2);
	if(loobj2==null){alert("没有找到对象"+lsobj2+"组件！");return false;}
	var lsvalue = loobj.value;
	var lsvalue2 = loobj2.value;
	var msgobj = getobj("msg_"+lsobj);

if(checkdatenoalert(lsobj,lsobj2)<=0){
	alert(lslabel+"应该大于"+lslabel2);
	return false;
}

}

//检查两个日期的输入是否正确(默认为相等0，小于-1,大于1,错误<-2),只返回结果,不提示
function checkdatenoalert(lostartdate,loenddate)
{
	if(lostartdate==null || loenddate==null)
	{
		return -2;
	}
	var yeardif,monthdif,daydif;
	
	var startdate = lostartdate.value;
	var enddate = loenddate.value;
	
	if(startdate.length==0) return -3;	
	if(enddate.length==0) return -4;
	if(!isrightdate(startdate))
	{
		return -5;
	}
	if(!isrightdate(enddate))
	{
		return -6;
	}
	
	lnarray_start_date = startdate.split("-");
	lnarray_end_date = enddate.split("-");
	
	
	yeardif = parseint(lnarray_end_date[0],10) - parseint(lnarray_start_date[0],10);
	if(yeardif<0)
	{
		return -1;
	}
	if(yeardif>0)	return 1;
	
	monthdif = parseint(lnarray_end_date[1],10) - parseint(lnarray_start_date[1],10);
	if(monthdif<0)
	{
		return -1;
	}
	if(monthdif>0) 
		return 1;
			
	daydif = parseint(lnarray_end_date[2],10) - parseint(lnarray_start_date[2],10);

	if(daydif<0)
	{
		return -1;
	}
	if(daydif>=0) return 1;
}
function isrightdate(str)
{
	var r = str.match(/^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2})$/);
	if(r==null)return false;
	var d= new date(r[1], r[3]-1, r[4]);
	return (d.getfullyear()==r[1]&&(d.getmonth()+1)==r[3]&&d.getdate()==r[4]);
}
//判断当前字符串中的所有字符在指定的字符串中
function isrightstr(lsstr1,lsstr2)
{
	if(lsstr1==null || lsstr2==null) return 0;
	var isright=1;
	var ch;
	for(i=0;i < lsstr1.length;i++)
	{
		ch=lsstr1.charat(i);
		if(lsstr2.indexof(ch)==-1)
		{
			isright=0;
			break;
		}
	}
	return isright;
}
//判断是否为数字
function isnum(str){
	if(isrightstr(str,"0123456789.-+")==0) return 0;	
	return 1;
}
//判断是否为整数
function isint(str){
	if(str==null || str.length<=0) return 1;
	return isrightstr(str,"0123456789");
}
// 只允许输入数字 <input  onkeypress="event.returnvalue=isdigit();">
function isdigit(){
  return ((event.keycode >= 48) && (event.keycode <= 57));
}
//检测只能是26个大小写英文字母和数字的函数
function isnumabc(e){
	var ok = "1234567890qwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklzxcvbnm";
	for(var i=0; i<e.length; i++){
		if (ok.indexof(e.charat(i))<0) {return false;}
	}
	return true;
}
//--加载样式--------------------------------------------------------------------------------------------------------------
//文本框，按钮样式
function form_style(){
	var aray =document.getelementsbytagname("td");
	for(var i = 0; i<aray.length; i++) {if(aray[i].innerhtml=="")aray[i].innerhtml="&nbsp;";}
	//按钮样式以及文本样式
	var list_input=document.getelementsbytagname("input");//获取input表单并付给数组
	for(var i=0;i<list_input.length &&list_input[i];i++){
	    if(list_input[i].classname!="")continue;
	    if(list_input[i].type.indexof("button") !=  -1)list_input[i].classname="inputtextbutton";
		if(list_input[i].type.indexof("text") !=  -1)list_input[i].classname="input_text";
		if(list_input[i].type.indexof("password") !=  -1)list_input[i].classname="input_text";	
		if(list_input[i].type.indexof("submit") !=  -1)list_input[i].classname="inputtextbutton";
		if(list_input[i].type.indexof("reset") !=  -1)list_input[i].classname="inputtextbutton";
		if(list_input[i].type.indexof("file") !=  -1)list_input[i].classname="input_text";
	    //--
	    if(list_input[i].disabled ==true&&list_input[i].type.indexof("checkbox") ==  -1&&list_input[i].type.indexof("button") ==  -1)list_input[i].classname="input_text_reaonly";
	} 
//大文本框样式
	var list_textarea=document.getelementsbytagname("textarea");//获取textarea表单并付给数组
   	for(var i=0;i<list_textarea.length &&list_textarea[i];i++){list_textarea[i].classname="input_text";}
 //下拉框 
 	var list_select=document.getelementsbytagname("select");//获取select表单并付给数组
   	for(var i=0;i<list_select.length &&list_select[i];i++){
   	    list_select[i].classname="input_text";
   	    if(list_select[i].disabled ==true)list_select[i].classname="input_text_reaonly";
    }
}

//截取字符串
//str要截取的字符串,len截取长度  
function cutstr(str,len) {
    var strvalue = "";  
    var length = 0;
    if(str.length>len){
        for(var i=0;i<str.length;i++)  
        {  
            //判断是否为汉字   
            if(fncheckchinesechar(str.charat(i)))  
            {  
                length++;  
            }  
            else  
            {  
                length+=2;  
            }  
            if(length>=len && str.length>length){  
                strvalue = str.substring(0,length);  
                return strvalue+'...';  
            }  
        }  
        return str; 
    }else{
    	return str;
    }
 
};
//判断是否为汉字  
function fncheckchinesechar(obj){  
	var reg = /^[\u0391-\uffe5]+$/;  
    return reg.test(obj);  
};