jsglobal.js

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/*********************************************** NAME:        JsGlobal.js              ******** CONTENT:     in common use  function  ******** AUTHOR:      mag                      ******** DATE:        2002/12/21               ******** @Return：   true :0;false:-1          *****************************************************///clear input and select with other one group redio function checkSelected(form, name, type){var elements = form.elements;var elementNum = elements.length; if (typeof(elements[name]) != "object")  return false;  if (typeof(elements[name][0]) != "object"){// only one itemif(elements[name].type != type) return false;   else return elements[name].checked; }     if (elements[name][0].type != type)  return false;    for(var nLoop = 0; nLoop < elementNum; nLoop++){  if (typeof(elements[name][nLoop]) != "object")return false;  if(elements[name][nLoop].checked == true){return true;  } }  return false;}//judge data is valid.// use: ChangeDays(//document.forms[0].YearName,//document.forms[0].MonthName,//document.forms[0].DayName);function changeDays(YearName,MonthName,DayName){var nYear = parseInt(YearName.options[YearName.selectedIndex].text,10);var nMonth = parseInt(MonthName.options[MonthName.selectedIndex].text,10);var nDays = checkDate(nYear, nMonth);if ((nDays < 1) || (nDays > 31)) return false;if (DayName.options.length < nDays){// from day: 29 to 31DayName.options.length = nDays;DayName.options[nDays-3].text = nDays - 2;DayName.options[nDays-2].text = nDays - 1;DayName.options[nDays-1].text = nDays;}elseDayName.options.length = nDays;return true;}//judge data is valid.function checkDate(nYear, nMonth){if ((nMonth < 1) || (nMonth > 12) || (nYear < 1990) || (nYear > 2100)){return -1;}else if (nMonth == 2){if (((nYear % 4 == 0) && (nYear % 100 != 0)) || (nYear % 400 == 0)){return 28;}else{return 29;}}else if (nMonth == 4 || nMonth == 6 || nMonth == 9 || nMonth == 11){return 30;}else{return 31;}}function consDate(year, mon, day){if(year == "----" && mon == "--" && day == "--"){return "999999999";}else if(year != "----" && mon != "--" && day != "--"){;}else {alert("选定的日期不合法，请重新选定1！");return false;}year = new String(year);mon = new String(mon);day = new String(day);if(mon.length < 2) mon = "0" + mon; if(day.length < 2) day = "0" + day; year += mon + day;return year;}function SetDateFocus(power,YearName2,MonthName2,DayName2){if (power < -9900){YearName2.focus();}else if (power < -99){MonthName2.focus();}else{DayName2.focus();}}// date1 > date2function CompareDate(YearName1,MonthName1,DayName1,YearName2,MonthName2,DayName2){var date1 = consDate(YearName1.options[YearName1.selectedIndex].text, MonthName1.options[MonthName1.selectedIndex].text, DayName1.options[DayName1.selectedIndex].text);var date2 = consDate(YearName2.options[YearName2.selectedIndex].text, MonthName2.options[MonthName2.selectedIndex].text, DayName2.options[DayName2.selectedIndex].text);if (!date1 || !date2)  return false;date2 -= date1;if (date2 > 0) return true;SetDateFocus(date2,YearName2,MonthName2,DayName2);alert("选定的日期不合法，请重新选定2！");return false;}// date1 >= date2function CompareDate0(YearName1,MonthName1,DayName1,YearName2,MonthName2,DayName2){var date1 = consDate(YearName1.options[YearName1.selectedIndex].text, MonthName1.options[MonthName1.selectedIndex].text, DayName1.options[DayName1.selectedIndex].text);var date2 = consDate(YearName2.options[YearName2.selectedIndex].text, MonthName2.options[MonthName2.selectedIndex].text, DayName2.options[DayName2.selectedIndex].text);if (!date1 || !date2)  return false;date2 -= date1;if (date2 >= 0) return true;SetDateFocus(date2,YearName2,MonthName2,DayName2);alert("比较选定的日期不合法，请重新选定！");return false;}/*Check input character is number or not*/function checkNum(checkStr){       range = "0123456789";        var strCheck;        for(var nLoop = 0; nLoop < checkStr.length; nLoop++){        strCheck = checkStr.substring(nLoop, nLoop + 1);                if((range.indexOf(strCheck) == -1))return true;        }       return false;} /* check mail address: */function checkEmail(strEMail) {    var nlen,i;    nlen = strEMail.length;            if(strEMail.indexOf("@") == -1 || strEMail.indexOf(".") == -1 ||    strEMail.indexOf("@")!=strEMail.lastIndexOf("@"))return false;    if (strEMail.charAt(0) == "@" || strEMail.charAt(0) == ".")    return false;         if (strEMail.charAt(nlen-1) == "." )    return false;         if(strEMail.indexOf(".") < strEMail.indexOf("@") ||     strEMail.indexOf(".") == strEMail.indexOf("@") + 1)    return false;           return true;}/* check Telephone */function checkTel(strNum) {    var i = 0;    var ch = "";    var varString = "0123456789-+";     for (i = 0; i < strNum.length; i++) {    if( varString.indexOf(strNum.charAt(i))==-1 ) {      return false;      }    }    return true;}// trim \r,\n--ykwfunction trim(strRough){    var len = strRough.length;    var nFirst, nEnd;    var nFlag = 0;    for(var nLoop = 0; nLoop < len; nLoop++)    {        if(strRough.charAt(nLoop) != " " && strRough.charAt(nLoop) != "\n" && strRough.charAt(nLoop) != "\r" && strRough.charAt(nLoop) != "\t")        {            nFlag++;            if(nFlag == 1)nFirst = nLoop;            nEnd = nLoop;        }    }    var strTrim = strRough.substring(nFirst, nEnd + 1);    return strTrim;}/*  check the Number is valid*/function checkNumber(checkstr) {var checkok = "1234567890";checkstr = trimBlank(checkstr);for(i=0;i<checkstr.length;i++){str=checkstr.charAt(i);for (j = 0;  j < checkok.length;  j++)if (str == checkok.charAt(j)){break;}if (j == checkok.length ){alert("请输入正确的数字!");return  true;}} return false;} /* Trim The String */function trimBlank(str) {    var i=0;        if(str.length==0)  {        return '';    }    while(str.charAt(i) == ' ') {        i++;        if (i==str.Length) {            return '';        }    }    var j=str.length-1;    while(str.charAt(j) == ' ') {        j--;    if (j==0) {    return '';        }    }    if (i>j) {        return "";    }    return str.substring(i, j+1);}// check num is valid // use isvalidNumber(document.forms[0].textname)function isValidNumber(checkstr){var ithreshold = parseInt(checkstr.value);if (checkNumber(checkstr.value))return false;else if (ithreshold < -2147483648 || ithreshold > 2147483647 ){alert('输入的值超出整形范围，请重新输入！');checkstr.focus();return false;}return true; }/* check the Length */function getLength(strTmp){var len = 0;    if (strTmp == "") {len = 0;return len;        }        //differ  browser deal with    if (isNetscape())     return (strTmp.length);    else     {for(var i = 0; i < strTmp.length; i++) {           if ((strTmp.charCodeAt(i) < 128) ||            (strTmp.charCodeAt(i) > 65376 && strTmp.charCodeAt(i) < 65440)) {            len++;        }        else {            len += 2;        }}}        return len;}/*judge charstring Length is valid */// use document.forms[0].textname;function isValidLength(checkstr){if (getLength(checkstr.value) > n){alert('输入的字符超出指定范围，请重新输入！');checkstr.focus();return false;}return true; }function locate(URL){location = URL;}function isNetscape(){return (navigator.appName.indexOf("Netscape")>=0);}function Action(strAct,descURL){document.forms[0].method.value = strAct;document.forms[0].action = descURL;        document.forms[0].submit();   return true;}// funciton: list all elements within a form// use as : Debug(document.form1);function Debug(form){var objForm = form;var i;var msg = "Is this form named " + objForm.name;for(i=0; i<objForm.elements.length;i++){msg += "\n\t" + objForm.elements[i].type + "\t\t" + objForm.elements[i].name;} alert(msg);msg = "\n";for(i=0; i<objForm.all.length;i++){msg += "\t" + objForm.all[i].type + "\t\t" + objForm.all[i].name;} msg = "\n";for(i=0; i<objForm.attributes.length;i++){msg += "\t" + objForm.attributes[i].type + "\t\t" + objForm.attributes[i].name;} }
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