//函数名：chkemail//功能介绍：检查是否为Email Address//参数说明：要检查的字符串//返回值：0：不是 1：是function chkemail(a){ var i=a.length;var temp = a.indexOf('@');var tempd = a.indexOf('.');if (temp > 1) {if ((i-temp) > 3){ if ((i-tempd)>0){return 1;} }}return 0;}//函数名：fucCheckNUM//功能介绍：检查是否为数字//参数说明：要检查的数字//返回值：1为是数字，0为不是数字function fucCheckNUM(NUM){var i,j,strTemp;strTemp="0123456789";if ( NUM.length== 0)return 0for (i=0;i<NUM.length;i++){j=strTemp.indexOf(NUM.charAt(i)); if (j==-1){//说明有字符不是数字return 0;}}//说明是数字return 1;}//函数名：fucCheckTEL//功能介绍：检查是否为电话号码//参数说明：要检查的字符串//返回值：1为是合法，0为不合法function fucCheckTEL(TEL){var i,j,strTemp;strTemp="0123456789-()# ";for (i=0;i<TEL.length;i++){j=strTemp.indexOf(TEL.charAt(i)); if (j==-1){//说明有字符不合法return 0;}}//说明合法return 1;} //opt1 小数 opt2 负数//当opt2为1时检查num是否是负数//当opt1为1时检查num是否是小数//返回1是正确的，0是错误的function chknbr(num,opt1,opt2){var i=num.length;var staus;//staus用于记录.的个数status=0;if ((opt2!=1) && (num.charAt(0)=='-')){//alert("You have enter a invalid number.");return 0; }//当最后一位为.时出错if (num.charAt(i-1)=='.'){//alert("You have enter a invalid number.");return 0;} for (j=0;j<i;j++){if (num.charAt(j)=='.'){status++;}if (status>1) {//alert("You have enter a invalid number.");return 0; }if (num.charAt(j)<'0' || num.charAt(j)>'9' ){if (((opt1==0) || (num.charAt(j)!='.')) && (j!=0)) {//alert("You have enter a invalid number.");return 0;}}}return 1;} //函数名：chkdate//功能介绍：检查是否为日期//参数说明：要检查的字符串//返回值：0：不是日期 1：是日期function chkdate(datestr){var lthdatestrif (datestr != "")lthdatestr= datestr.length ;elselthdatestr=0; var tmpy="";var tmpm="";var tmpd="";//var datestr;var status;status=0;if ( lthdatestr== 0)return 0 for (i=0;i<lthdatestr;i++){ if (datestr.charAt(i)== '-'){status++;}if (status>2){//alert("Invalid format of date!");return 0;}if ((status==0) && (datestr.charAt(i)!='-')){tmpy=tmpy+datestr.charAt(i)}if ((status==1) && (datestr.charAt(i)!='-')){tmpm=tmpm+datestr.charAt(i)}if ((status==2) && (datestr.charAt(i)!='-')){tmpd=tmpd+datestr.charAt(i)} }year=new String (tmpy);month=new String (tmpm);day=new String (tmpd)//tempdate= new String (year+month+day);//alert(tempdate);if ((tmpy.length!=4) || (tmpm.length>2) || (tmpd.length>2)){//alert("Invalid format of date!");return 0;}if (!((1<=month) && (12>=month) && (31>=day) && (1<=day)) ){//alert ("Invalid month or day!");return 0;}if (!((year % 4)==0) && (month==2) && (day==29)){//alert ("This is not a leap year!");return 0;}if ((month<=7) && ((month % 2)==0) && (day>=31)){//alert ("This month is a small month!");return 0; }if ((month>=8) && ((month % 2)==1) && (day>=31)){//alert ("This month is a small month!");return 0;}if ((month==2) && (day==30)){//alert("The Febryary never has this day!");return 0;} return 1;}//函数名：chksafe//功能介绍：检查是否含有"'",'\\',"/"//参数说明：要检查的字符串//返回值：0：是 1：不是function chksafe(a){ return 1;/* fibdn = new Array ("'" ,"\\", "、", ",", ";", "/");i=fibdn.length;j=a.length;for (ii=0;ii<i;ii++){ for (jj=0;jj<j;jj++){ temp1=a.charAt(jj);temp2=fibdn[ii];if (tem';p1==temp2){ return 0; }}}return 1;*/ } //函数名：chkspc//功能介绍：检查是否含有空格//参数说明：要检查的字符串//返回值：0：是 1：不是function chkspc(a){var i=a.length;var j = 0;var k = 0;while (k<i){if (a.charAt(k) != " ")j = j+1;k = k+1;}if (j==0){return 0;} if (i!=j){ return 2; }else{return 1;}}    [发送给好友]  [打印本页]  [

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