<script language="JavaScript"> <!-- var d = new Date(); var od = new Date("2003/09/20"); alert(d+" "+od); alert(d-od); if (d-od>0){ alert(">"); }else{ alert("<"); } //--> </script>
<script> function CompareDate(d1,d2) { return ((new Date(d1.replace(/-/g,"\/"))) > (new Date(d2.replace(/-/g,"\/")))); }var current_time = "2007-2-2 7:30"; var stop_time = "2007-1-31 8:30"; alert(CompareDate(current_time,stop_time));</script>
<script language="javascript"> <!-- function isValidDateFormat(str){ var reg = /^\d{4}-\d{2}-\d{2}$/; if(!reg.test(str)) return false; var d = new Date(str.replace(/-/g,"/")); var ar = []; str.replace(/\d+/g,function(p){ar.push(parseInt(p,10));}) if(d.getFullYear()!=ar[0] || d.getMonth()!=ar[1]-1 || d.getDate()!=ar[2] ) return false; return true; } function isGreatThanDate(d1,d2){ return d1.valueOf() > d2.valueOf(); } function dateCompare() { /* 1.验证开始日期和结束日期必须为日期型的格式 2.验证开始日期必须大于今天 3.验证结束日期必须大于开始日期 */ var frm = document.forms['tform']; var sDate = frm.elements['dateStart'].value; var eDate = frm.elements['dateEnd'].value; if(!isValidDateFormat(sDate)){ alert("dateStart is invalid"); return false;} if(!isValidDateFormat(eDate)){ alert("dateEnd is invalid"); return false;} sDate = new Date(sDate.replace(/-/g,"/")); eDate = new Date(eDate.replace(/-/g,"/")); if(!isGreatThanDate(sDate,new Date())) { alert("dateStart must great then today"); return false;} if(!isGreatThanDate(eDate,sDate)){ alert("dateEnd must great then dateStart."); return false;} return true;} --> </script><form method="POST" action="" name="tform" onsubmit="return dateCompare()"> 开始日期:<input type="text" name="dateStart" size="10" value="2007-05-20"> 结束日期:<input type="text" name="dateEnd" size="10" value="2006-05-20"> <input type="submit" /> </form>
stringDt2 = document.getElementById( "Dt2" );var pattern = /^((((1[6-9]|[2-9]\d)\d{2})-(0?[13578]|1[02])-(0?[1-9]|[12]\d|3[01]))|(((1[6-9]|[2-9]\d)\d{2})-(0?[13456789]|1[012])-(0?[1-9]|[12]\d|30))|(((1[6-9]|[2-9]\d)\d{2})-0?2-(0?[1-9]|1\d|2[0-8]))|(((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))-0?2-29-))$/;if( !pattern.test(stringDt1) ) alert( "dt1 invalid." );
if( !pattern.test(stringDt2) ) alert( "dt2 invalid." );
var current = new Date();
var today= new Date(current.getYear(),current.getMonth(),current.getDate()); dt1=stringDt1.replace(/-/g,"/")
dt1=new Date(dt1);
dt2=stringDt2.replace(/-/g,"/")
dt2=new Date(dt2);if (! (Date.parse(dt1)-Date.parse(today)>0 )){
alert("Dt1 <= today");
} if (! (Date.parse(dt2)-Date.parse(dt1)>0 )){
alert("Dt2 <= dt1");
}
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<script language=javascript>
String.prototype.isTime = function()
{
var r = this.match(/^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2}) (\d{1,2}):(\d{1,2})$/);
if(r==null)return false; var d = new Date(r[1], r[3]-1,r[4],r[5],r[6],0);
return (d.getFullYear()==r[1]&&(d.getMonth()+1)==r[3]&&d.getDate()==r[4]&&d.getHours()==r[5]&&d.getMinutes()==r[6]);
}
alert("2002-1-31 12:34".isTime());
alert("2001-2-29 12:54".isTime());
alert("2002-1-41 12:00".isTime());String.prototype.isDate = function()
{
var r = this.match(/^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2})$/);
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]);
}
alert("2002-1-31".isDate());
alert("2001-2-29".isDate());
alert("2002-1-41".isDate());
</script>
</HEAD><BODY></BODY>
</HTML>
<!--
var d = new Date();
var od = new Date("2003/09/20");
alert(d+" "+od);
alert(d-od);
if (d-od>0){
alert(">");
}else{
alert("<");
}
//-->
</script>
function CompareDate(d1,d2)
{
return ((new Date(d1.replace(/-/g,"\/"))) > (new Date(d2.replace(/-/g,"\/"))));
}var current_time = "2007-2-2 7:30";
var stop_time = "2007-1-31 8:30";
alert(CompareDate(current_time,stop_time));</script>
<!--
function isValidDateFormat(str){
var reg = /^\d{4}-\d{2}-\d{2}$/;
if(!reg.test(str)) return false;
var d = new Date(str.replace(/-/g,"/"));
var ar = [];
str.replace(/\d+/g,function(p){ar.push(parseInt(p,10));})
if(d.getFullYear()!=ar[0] || d.getMonth()!=ar[1]-1 || d.getDate()!=ar[2] ) return false;
return true;
}
function isGreatThanDate(d1,d2){
return d1.valueOf() > d2.valueOf();
}
function dateCompare() {
/*
1.验证开始日期和结束日期必须为日期型的格式
2.验证开始日期必须大于今天
3.验证结束日期必须大于开始日期
*/
var frm = document.forms['tform'];
var sDate = frm.elements['dateStart'].value;
var eDate = frm.elements['dateEnd'].value;
if(!isValidDateFormat(sDate)){ alert("dateStart is invalid"); return false;}
if(!isValidDateFormat(eDate)){ alert("dateEnd is invalid"); return false;} sDate = new Date(sDate.replace(/-/g,"/"));
eDate = new Date(eDate.replace(/-/g,"/"));
if(!isGreatThanDate(sDate,new Date())) { alert("dateStart must great then today"); return false;}
if(!isGreatThanDate(eDate,sDate)){ alert("dateEnd must great then dateStart."); return false;}
return true;}
-->
</script><form method="POST" action="" name="tform" onsubmit="return dateCompare()">
开始日期:<input type="text" name="dateStart" size="10" value="2007-05-20">
结束日期:<input type="text" name="dateEnd" size="10" value="2006-05-20">
<input type="submit" />
</form>