//	evila 收集整理

function IsURL(url)
{
    var regexp = /^http:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&_~`@[\]\':+!]*([^<>\"\"])*$/;
    return regexp.test(url);
}

function IsEmail(str)
{
		var regexp=/^[a-zA-Z0-9_]{2,25}[@][a-zA-z0-9-]{1,100}[.]([a-zA-Z]{2,4}|[a-zA-Z]{2,4}[.][a-zA-Z]{2})$/g;
		return regexp.test(str);
}

function isDateString(sDate)
{
	var iaMonthDays = [31,28,31,30,31,30,31,31,30,31,30,31]
	var iaDate = new Array(3)
	var year, month, day

	if (arguments.length != 1) return false
	iaDate = sDate.toString().split("-")
	if (iaDate.length != 3) return false
	if (iaDate[1].length > 2 || iaDate[2].length > 2) return false

	year = parseFloat(iaDate[0])
	month = parseFloat(iaDate[1])
	day=parseFloat(iaDate[2])

	if (isNaN(year)==true) return false
	if (isNaN(month)==true)  return false
	if (isNaN(day)==true)  return false

	if (year < 1900 || year > 2100) return false
	if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) iaMonthDays[1]=29;
	if (month < 1 || month > 12) return false
	if (day < 1 || day > iaMonthDays[month - 1]) return false
	return true
}