js 正则表达式语法大全_正则表达式大全_js正则表达式怎么写(24)

var reg=reg.replace(/dd/,"((0[1-9])|([1-2][0-9])|30|31)");

var reg=reg.replace(/d/,"([1-9]|[1-2][0-9]|30|31))");

var reg=reg.replace(/HH/,"(([0-1][0-9])|20|21|22|23)");

var reg=reg.replace(/H/,"([0-9]|1[0-9]|20|21|22|23)");

var reg=reg.replace(/mm/,"([0-5][0-9])");

var reg=reg.replace(/m/,"([0-9]|([1-5][0-9]))");

var reg=reg.replace(/ss/,"([0-5][0-9])");

var reg=reg.replace(/s/,"([0-9]|([1-5][0-9]))");

reg=new RegExp("^"reg"$");

if(reg.test(time)==false){//验证式是否合法

alert(alt);

date.focus();

return false;

}

return true;

}

function validateDateGroup(year,month,day,alt){

var array=new Array(31,28,31,30,31,30,31,31,30,31,30,31);

var y=parseInt(year.value);

var m=parseInt(month.value);

var d=parseInt(day.value);

var maxday=array[m-1];

if(m==2){

if((y%4==0&&y%100!=0)||y%400==0){

maxday=29;

}

}

if(d>maxday){

alert(alt);

return false;

}

return true;

}

function validateCheckbox(obj,alt){

var rs=false;

if(obj!=null){

if(obj.length==null){

return obj.checked;

}

for(i=0;i<obj.length;i){

if(obj[i].checked==true){

return true;

}

}

}

alert(alt);

return rs;

}

function validateRadio(obj,alt){

var rs=false;

if(obj!=null){

if(obj.length==null){

return obj.checked;

}

for(i=0;i<obj.length;i){

if(obj[i].checked==true){

return true;

}

}

}

alert(alt);

return rs;

}

function validateSelect(obj,alt){

var rs=false;

if(obj!=null){

for(i=0;i<obj.options.length;i){

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