js functions
2009-07-13 08:48 zhangbaoyu 阅读(314) 评论(1) 编辑 收藏 举报function ckNum(text,type)
{
if(event.keyCode==9 || event.keyCode==37 || event.keyCode==37)return
s=text.value
while(s.indexOf("0")!=-1){s=s.replace("0","0");}
while(s.indexOf("1")!=-1){s=s.replace("1","1");}
while(s.indexOf("2")!=-1){s=s.replace("2","2");}
while(s.indexOf("3")!=-1){s=s.replace("3","3");}
while(s.indexOf("4")!=-1){s=s.replace("4","4");}
while(s.indexOf("5")!=-1){s=s.replace("5","5");}
while(s.indexOf("6")!=-1){s=s.replace("6","6");}
while(s.indexOf("7")!=-1){s=s.replace("7","7");}
while(s.indexOf("8")!=-1){s=s.replace("8","8");}
while(s.indexOf("9")!=-1){s=s.replace("9","9");}
while(s.indexOf(",")!=-1){s=s.replace(",",",");}
while(s.indexOf("-")!=-1){s=s.replace("-","-");}
while(s.indexOf(" ")!=-1){s=s.replace(" "," ");}
while(s.indexOf(".")!=-1){s=s.replace(".",".");}
while(s.indexOf("_")!=-1){s=s.replace("_","_");}
while(s.indexOf("+")!=-1){s=s.replace("+","+");}
num=s.replace(/([^0-9.]+)/gi,"")
var strtemp=num.replace(/\.{2}/gi,"")
if(text.value!=strtemp)text.value=strtemp
if(type=="")
{
if(text.value=="")text.value=0;
}
else
{
if(text.value=="")text.value="";
}
}
function getAge(value)
{
var str=value;
var len=str.length;
var age=0;
if (len==15)//15位身份证
{
var s=str.substr(len-1,1);
//if ((str.substr(len-1,1)%2)!=0)//判断顺序码是否是奇数
//sex.value="男";
//else
//sex.value="女";
var date1=new Date();//取得当前日期
var year1=date1.getFullYear();//取得当前年份
var month1=date1.getMonth();//取得当前月份
//if (month1>parseInt(str.substr(8,2)))//判断当前月分与编码中的月份大小
//age=year1-("19"+str.substr(6,2));
//else
//age=year1-("19"+str.substr(6,2))-1;
age=year1-("19"+str.substr(6,2));
}
if (len==18)//18位身份证
{
//if ((str.substr(len-2,1)%2)!=0)//判断顺序码是否是奇数
//sex.value="男";
//else
//sex.value="女";
var date1=new Date();//取得当前日期
var year1=date1.getFullYear();//取得当前年份
var month1=date1.getMonth();//取得当前月份
//if (month1>parseInt(str.substr(10,2)))//判断当前月分与编码中的月份大小
//age=year1-str.substr(6,4);
//else
//age=year1-str.substr(6,4)-1;
age=year1-str.substr(6,4);
}
//age=parseInt(age)+1;
return age;
}
String.prototype.trim=function(){return this.replace(/(^\s*)|(\s*$)/g, "");}
String.prototype.ltrim=function(){return this.replace(/(^\s*)/g,"");}
String.prototype.rtrim=function(){return this.replace(/(\s*$)/g,"");}
Number.prototype.format=function(decimalPoints,thousandsSep,decimalSep){
var val=this+'',re=/^(-?)(\d+)/,x,y;
if (decimalPoints!=null) val = this.toFixed(decimalPoints);
if (thousandsSep && (x=re.exec(val))){
for (var a=x[2].split(''),i=a.length-3;i>0;i-=3) a.splice(i,0,thousandsSep);
val=val.replace(re,x[1]+a.join(''));
}
if (decimalSep) val=val.replace(/\./,decimalSep);
return val;
}
if (typeof Number.prototype.toFixed!='function' || (.9).toFixed()=='0' || (.007).toFixed(2)=='0.00') Number.prototype.toFixed=function(f){
if (isNaN(f*=1) || f<0 || f>20) f=0;
var s='',x=this.valueOf(),m='';
if (this<0){ s='-'; x*=-1; }
if (x>=Math.pow(10,21)) m=x.toString();
else{
m=Math.round(Math.pow(10,f)*x).toString();
if (f!=0){
var k=m.length;
if (k<=f){
var z='00000000000000000000'.substring(0,f+1-k);
m=z+m;
k=f+1;
}
var a = m.substring(0,k-f);
var b = m.substring(k-f);
m = a+'.'+b;
}
}
if (m=='0') s='';
return s+m;
}
function formatInteger(src, pos)
{
switch (pos)
{
case -1:
var str1 = ("" + src).replace(/(\.\d+)/, "");
return str1
}
}