JavaScript常用检测脚本

}

/*

-------------------------------------------------------------------------------

说明：JavaScript脚本，验证表单中的数据项  begin

-------------------------------------------------------------------------------

*/

function checkForm(objFrm){

var len = 0;

len = objFrm.elements.length;

var i = 0;

var objCheck;

//文本框

for(i = 0; i < len; i ++){

objCheck = objFrm.elements[i];

if(objCheck.type =="text" && !f_checkTextValid(objCheck) ){

return false;

}

}

//下拉框

for(i = 0; i < len; i ++){

objCheck = objFrm.elements[i];

if(objCheck.type =="select-one" && !f_checkSelectValid(objCheck) ){

return false;

}

}

//时间段有效

if( f_checkStartAndEndDate(objFrm) == false) return false;

return true;

}

function f_checkSelectValid(obj){

//alert("check select");

if(obj.options.length <= 0){

alert("下拉选框无数据!");

return false;

}

return true;

}

function f_checkStartAndEndDate(frm){

var len = frm.elements.length;

if(len == null && len == 0) return true;

var i=0;

var temp;

var objCheck;

var objStartDate;

var objEndDate;

//alert("start date period check");

try{

for(i=0; i< len ; i++){

objCheck = frm.elements[i];

temp = objCheck.name;

if( temp.indexOf("startDate") >0 ||temp.indexOf("beginDate")>0 )

objStartDate = objCheck;

if( temp.indexOf("endDate") > 0 )

objEndDate = objCheck;

}

//alert(objStartDate.value);

//alert(objEndDate.value);

if(objStartDate.value==null || objStartDate.value =="" || objStartDate.value ==null || objStartDate.value ==""){

return true;

}

return checkTwoDate(objStartDate.value, objEndDate.value);

//alert("end date period check");

}catch(E){}

return true;

}

function f_checkTextValid(obj){

//不能为空

if(obj.getAttribute("isNeed") != null){

if(f_isNotNull(obj) == false) return false;

}

//不能超过长度

if(obj.getAttribute("maxlength") != null){

if(f_checkLength(obj) == false) return false;

}

var checkType ="";

checkType = obj.getAttribute("checkType");

if(checkType==null||checkType=="") return true;

//

if (checkType.indexOf("number") >=0){

if(f_isNumber(obj) == false)  return false;

if(f_checkNumType(obj,checkType) == false)  return false;

}

//

if (checkType.indexOf("positive") >=0){

if(f_isNumber(obj) == false)  return false;

if(f_isPositive(obj)==false)  return false;

if(f_checkNumType(obj,checkType) == false)  return false;

}

if (checkType.indexOf("date") >=0){

if(f_checkDate(obj) == false) return false;

}

/*

switch(checkType){

case "number": if(f_isNumber(obj) == false) return false;break;

case "date": if(f_checkDate(obj) == false) return false;break;

default:

}

*/

return true;

}

function f_isNotNull(obj){

if(obj.value == ""){

f_alert(obj, " 不允许为空值！");

return false;

}

return true;

}

function f_isNumber(obj){

if(isNaN(obj.value)){

f_alert(obj," 应为数值类型");

return false;

}

return true;

}

function f_checkDate(obj) {

if(checkDate(obj.value) ==false){

f_alert(obj," 不是合法日期格式！");

return false;

}

return true;

}

function f_checkLength(obj){

if(getTotalBytes(obj) > Math.abs( obj.getAttribute("maxlength") ) ){

f_alert(obj," 超出长度限制!");

return false;

}

return true;

}

function  f_alert(obj,alertStr){

var fielName = obj.getAttribute("fieldName");

if(fielName == null)

fielName = "";

alert(fielName + "\n" +alertStr);

obj.select();

obj.focus();

}

function f_checkNumType(obj, numType){

//假设: 已经进行数字类型判断

var strTemp;

var numpric;

var numLen;

var strArr;

var defaultLen = 19;

var defaultpric = 5;