jsfunctions.js

基于actionscript3.0的flashLoading控件

var dtSep= "-";
var minYear=2004;
var maxYear=2100;

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){ 
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    return true;
}

function stripDateChars(s, haystack){
	var i;
    var returnString = "";
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (haystack.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function daysArray(d) {
	for (var i = 1; i <= d; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
   } 
   return this
}

function isDate(dtStr){	
	var daysInMonth = daysArray(12)
	var pos1=dtStr.indexOf(dtSep)
	var pos2=dtStr.indexOf(dtSep,pos1+1)
	var strYear=dtStr.substring(0,pos1)
	var strMonth=dtStr.substring(pos1+1,pos2)
	var strDay=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
		alert("The date format should be : yyyy-mm-dd")
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
		alert("Please enter a valid month")
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
		alert("Please enter a valid day")
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
		alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
		return false
	}
	if (dtStr.indexOf(dtSep,pos2+1)!=-1 || isInteger(stripDateChars(dtStr, dtSep))==false){
		alert("Please enter a valid date")
		return false
	}
return true
}


function getRadioSelection(radioObject) {		
	var value = null;		
	for (var i=0; i<radioObject.length; i++) {	  	  
		if (radioObject[i].checked) {			
			value = radioObject[i].value;			
			break;
		}	
	}		
	return value;	
}