Common js Methods

1: Determine the screen size
Window. screen. width
2:
For (var I = 0; I <temp. length-1; I ++ ){
NewOpt = new Option (temp [I] [0], temp [I] [1]);
Document. Form1.DropDownList3. options [I] = newOpt;
}
For (var I = 0; I <objAry. length; I ++)
{
Obj. add (new Option (objAry [I] [0] + '-' + objAry [I] [1], objAry [I] [0]);
}
Both of them can be used.

Table_tab = "<table align = 'left' width = '000000' border = '0' cellspacing = '1' cellpadding = '1'>"
For (var ji = 1; ji <FORM. OPT_AND_DESC.length; ji ++)
{
Stropt_desc = FORM. OPT_AND_DESC [ji]. value. trim ()

StrJECT_OPT = stropt_desc.substring (2, stropt_desc.indexOf ('^ '));
StrJECT_DESC = stropt_desc.substring (stropt_desc.indexOf ('^') + 2, stropt_desc.indexOf ('##'));

StrVOL_COUNT = stropt_desc.substring (stropt_desc.indexOf ('#') + 2, stropt_desc.indexOf ('$ '));
StrVOL_COUNT_UNIT = stropt_desc.substring (stropt_desc.indexOf ('$') + 2, stropt_desc.indexOf ('**'));
StrCONTENT_COUNT = stropt_desc.substring (stropt_desc.indexOf ('**') + 2, stropt_desc.indexOf ('@@'));
StrCONTENT_COUNT_UNIT = stropt_desc.substr (stropt_desc.indexOf ('@') + 2 );
StrCOUNT_UNIT = "";
If (strVOL_COUNT_UNIT.trim ()! = '') & (StrCONTENT_COUNT_UNIT.trim ()! = '')){
StrCOUNT_UNIT = strVOL_COUNT + strVOL_COUNT_UNIT.substr (2) + strCONTENT_COUNT + strCONTENT_COUNT_UNIT.substr (2 );
} Else if (strVOL_COUNT_UNIT.trim ()! = ''){
StrCOUNT_UNIT = strVOL_COUNT + strVOL_COUNT_UNIT.substr (2 );
} Else if (strCONTENT_COUNT_UNIT.trim ()! = ''){
StrCOUNT_UNIT = strCONTENT_COUNT + strCONTENT_COUNT_UNIT.substr (2 );
}
StrNUM = FORM. OPT_AND_DESC [ji]. text. trim ();

T [rowcount] = "<tr NAME = 'tr" + rowcount + "'id = 'tr" + rowcount + "'style = 'cursor: hand; 'class = 'clsgrdbody' onclick =__ grdRow_OnClick ('#95DCF9'); getdata ('"+ strNUM +"');>"
// T [rowcount] = t [rowcount] + "<TD WidTH = '000000'>" + rowcount + "</TD>"
T [rowcount] = t [rowcount] + "<TD WidTH = '000000'>" + strJECT_OPT + "</TD>"
T [rowcount] = t [rowcount] + "<TD WidTH = '000000'> <a title = '" + strJECT_DESC + "'>" + strJECT_DESC.substring (45%) + "</a> </TD>"
T [rowcount] = t [rowcount] + "<TD WidTH = '000000'>" + strCOUNT_UNIT + "</TD>"
T [rowcount] = t [rowcount] + "</tr>"

Rowcount = rowcount + 1;
}
For (I = 1; I <rowcount; I ++ ){
If (t [I]. trim ()! = '') & (T [I]! = 'Undefined '))
T_d = t_d + t [I];
}
Query_display_data.innerHTML = table_tab + t_d + "</table> ";
3: Spatial Data Group Space
Var arrEntryValue = new Array ();
// Add new elements to a data group and return the new Length Value of the group.
Var newleng = arrEntryValue. push (vEntryValue)
// Purpose: remove the null value of the Data Group
// Parameter: arry1: the number of null values to be removed. intIndex: the lower mark of the number of null values to be removed.
Function arr_Qeue (arry1, intIndex ){
If (arry1.length> 0 ){
For (var I = intIndex; I <arry1.length-1; I ++ ){
Arry1 [I] = arry1 [I + 1]
}
// Remove the last element from the group and return the element
Arry1.pop ();
}
Return arry1
}
// Purpose: When the storage is successful, empty spaces of all data groups are placed in the memory.
// Allows you to add, modify, divide, and store shards in progress.
// Parameter: arry1: number of data groups that need to be empty
Function Release_Space (arry1)
{
If (arry1.length> 0)
{
For (var I = arry1.length-1; I <arry1.length; I --)
{
If (I =-1)
{
Break;
}
Arry1.pop ()
}
}
Return arry1
}
// Determine whether the digit value is a number
Function Check_Num_Field (ObjName)
{
Var LV_Value = ObjName. value. trim ();

If (LV_Value! = '')&&(! IsNumeric (LV_Value )))
{
Alert ("Please input data! ");
ObjName. focus ();
ObjName. select ();
ObjName. value = "";
Return false;
}
Return true;
}
// Determine whether the integer value is a positive number.
Function Check_Int_Field_Plus (objF)
{
If (Check_Int_Field (objF ))
{
Var intV = objF. value * 1;
If (intV <0)
{
Alert ("the digit value cannot be smaller than 0! ")
ObjF. value = "";
ObjF. focus ();
ObjF. select ();
Return false;
}
ObjF. value = intV;
}
}
// Determine whether the integer value is an integer.
Function Check_Int_Field (ObjName)
{
Var LV_Value = ObjName. value. trim ();
If (LV_Value! = '')&&(! IsInteger (LV_Value )))
{
Alert ("Please complete the entire number! ");
ObjName. value = "";
ObjName. focus ();
Return false;
}
Return true;
}
// Determine whether the keyword is a number
Function isNumeric (strNum)
{
Var strCheckNum = strNum + "";
If (strCheckNum. length <1) // empty string
Return false;
If (isNaN (strCheckNum) // not a numeric value
Return false;

Return true;
}
// Determine whether the entire data is used.
Function isInteger (strNum)
{
Var strCheckNum = strNum * 1 + "";
If (strCheckNum. length <1) // empty string
Return false;
If (isNaN (strCheckNum) // not a numeric value
Return false;
If (parseFloat (strCheckNum)> parseInt (strCheckNum) // not an integer
Return false;
Return true;
}

// Determine whether the expiration date is valid
// Input parameter number: vobjName date object
// Whether bolChDate is the date of the nation, 0-ad date, 1-the date of the country
Function Check_Date_Field (vobjName, bolChDate)
{
Var strDay, strMonth, strYear, strCYear, strTimeAry
Var strDate, StandDate, strWeekName, datDate, intNum, strChangeDate
Var resStr = "";
 
StrDate = vobjName. value. trim ();
If (strDate = "") return; // if the date is null, do not
// If the date is the date of the nation, the first digit is the date of the year.
If (bolChDate = 1)
{
If (strDate. indexOf ("-")> 0)
StrDate = (strDate. substring (0, strDate. indexOf ("-") * 1 + 1911 ). toString () + (strDate. substring (strDate. indexOf ("-"), strDate. length )). toString ()
Else
If (strDate. indexOf (".")> 0)
StrDate = (strDate. substring (0, strDate. indexOf (". ") * 1 + 1911 ). toString () + (strDate. substring (strDate. indexOf (". "), strDate. length )). toString ()
Else
If (strDate. indexOf ("/")> 0)
StrDate = (strDate. substring (0, strDate. indexOf ("/") * 1 + 1911 ). toString () + (strDate. substring (strDate. indexOf ("/"), strDate. length )). toString ()
Else
StrDate = (strDate. substring (0, strDate. length-4) * 1 + 1911 ). toString () + (strDate. substring (strDate. length-4, strDate. length )). toString ()
}
// Set the date to "1997/5/6"
// XXXX-XX-XX
If (strDate. indexOf ("-")! = 0)
{ResStr = "";
For (var I = 0; I <strDate. length; I ++)
ResStr = resStr + (strDate. substring (I, I + 1). replace ('-','/'));
StrDate = resStr;
}
// XXXX. XX. XX
If (strDate. indexOf (".")! = 0)
{ResStr = "";
For (var I = 0; I <strDate. length; I ++)
ResStr = resStr + (strDate. substring (I, I + 1). replace ('.','/'));
StrDate = resStr;
}
// XXXXXXXX
If (strDate. indexOf ("/") <= 0)
{StrDate = (strDate + '000000000a'). substring (0, 8)
StrDate = strDate. substring () + "/" + strDate. substring () + "/" + strDate. substring (6, 8 );
}
// Determine whether the expiration date is valid
If (! IsDate (strDate ))
{
Alert ("please refer to the date, in the format of year, month, day !! ");
VobjName. value = "";
VobjName. focus ();
Return;
}
If (bolChDate = 1)
{
StrYear = '000' + (strDate. substring (1911) * 1-). toString ()
StrYear = strYear. substring (strYear. length-3, strYear. length)
StrDate = strYear. toString () + (strDate. substring (4, strDate. length). toString ()
}
VobjName. value = strDate;
}
// Determine whether the expiration date is valid
Function IsDate (str)
{
Var r = str. match (/^ (\ d {}) (-| \/) (\ d {}) \ 2 (\ d {}) $ /);
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]);
}
// The regular expression for removing spaces from a string
String. prototype. trim = function ()
{
Return this. replace (/(^ \ s *) | (\ s * $)/g ,'');
}
// Check validity of the time bit value
Function Check_Time_Field (objtime, strH)
{
Var strTime
Var resStr = "";
Var VL
Var vM
Var
StrTime = objtime. value. trim ();
If (strTime = "") return; // if the time is null, do not
// Set the time to "12:00:00"
// XX. XX. XX
ResStr = "";
For (var I = 0; I <strTime. length; I ++)
ResStr = resStr + (strTime. substring (I, I + 1). replace ('.',':'));
StrTime = resStr;
// XX
ResStr = "";
For (var I = 0; I <strTime. length; I ++)
ResStr = resStr + (strTime. substring (I, I + 1). replace ('',':'));
StrTime = resStr;
// XX-XX-XX
ResStr = "";
For (var I = 0; I <strTime. length; I ++)
ResStr = resStr + (strTime. substring (I, I + 1). replace ('-',':'));
StrTime = resStr;
// XXXXXXXX
If (strTime. indexOf (":") <= 0)
{
If (strTime. length = 1)
StrTime = "0" + "+ strTime +": 00: 00 ";
Else {
StrTime = (strTime + '123'). substring (000000)
StrTime = strTime. substring () + ":" + strTime. substring () + ":" + strTime. substring );
}
}
// XX: XX
If (strTime. lastIndexOf (":")> 0 & strTime. lastIndexOf (":") <= 2)
StrTime = strTime + ': 00 ';

Var strTimeArry2 = strTime. split (":");
FLAC = strTimeArry2 [0];
VM = strTimeArry2 [1];
VS = strTimeArry2 [2];
If (strTimeArry2.length = 2)
VS = "00 ";
If (! (IsNaN (VL) | isNaN (vM) | isNaN ()))
{
If (VL> = 24) VL = vH-24;
If (vM> = 60) vM = vM-60;
If (vS> = 60) vS = vS-60;
Consecutive hours = "00" + (consecutive hours * 1). toString ()
Consecutive hours (hours) = consecutive days (hours)
VM = "00" + (vM * 1). toString ()
VM = vM. substring (vM. length-2, vM. length)
VS = "00" + (vS * 1). toString ()
VS = vS. substring (vS. length-2, vS. length)
}
StrTime = VL + ":" + vM + ":" +;
 
// Judge the time
If (! IsTime (strTime ))
{
Alert ("loading time! ");
Objtime. value = "";
Return;
}
If (strH = 0)
StrTime = strTime. substring (0, 5 );
Objtime. value = strTime;
}
// Validity of the checking time
Function IsTime (strTime)
{
Var strHours;
Var strMinutes;
Var strSeconds;
Var strTimeArry3 = strTime. split (":"); // use ":" To divide data into groups
If (strTimeArry3.length! = 3) // if it is not a time-and-second-level standard format, no score is given.
Return false;
StrHours = strTimeArry3 [0];
StrMinutes = strTimeArry3 [1];
StrSeconds = strTimeArry3 [2]
If (isNaN (strHours) | isNaN (strMinutes) | isNaN (strSeconds ))
Return false;
If (strTimeArry3 [0]. length> 2 | strTimeArry3 [1]. length> 2 | strTimeArry3 [2]. length> 2)
Return false;
If (strHours> 23 | strHours <0 | strMinutes> 59 | strMinutes <0 | strSeconds> 59 | strSeconds <0)
Return false;
Return true;
}
// Modify the format of text (Table 0 has no shadow)
Function disable (txtname, val)
{
If (txtname! = Null & txtname! = "" & Txtname! = ""){
If (val = 0 ){
If (txtname. type = 'text '){
Txtname. style. borderStyle = "groove"
Txtname. readOnly = true
} Else {
Txtname. disabled = true
}
} Else {
If (txtname. type = 'text '){
Txtname. style. borderStyle = ""
Txtname. readOnly = false
} Else {
Txtname. disabled = false
}
}
}
}