function checkItem(ele,showname,isnull, minlength, maxlengths, isnumber){
    var elevalue = ele.value;
    if (isnull == 1){
       if (elevalue == "") {
           alert(showname + "不能为空!");
           ele.focus();
           return false;
       }
    }
    if (elevalue != ""){
      if (minlength!=0){
          if (elevalue.length<minlength){
             alert(showname + "的长度不能小于" + minlength + "位!");
             ele.focus();
             return false;
          }
      }
      
      if (maxlengths!=0){
         if (elevalue.length>maxlengths){
	     alert(showname + "的长度不能多于" + maxlengths + "位!");
             ele.focus();
             return false;
          }
      }

      if (isnumber==1){
          if (checkNumber(ele) == false){
              alert(showname + "必须输入数值型!");
              ele.focus();
              return false;
          }
      }
	if (isnumber==2){
          if (checkIntegerNumber(ele) == false){
              alert(showname + "必须输入整数型!");
              ele.focus();
              return false;
          }
	}
   }
    //return true;
}