/*
  $Id: general.js,v 1.1.1.1 2003/09/18 19:05:06 wilt Exp $
*/

function SetFocus(TargetFormName) {
	var target = 0;
	if (TargetFormName != "") {
		for (i=0; i<document.forms.length; i++) {
			if (document.forms[i].name == TargetFormName) {
				target = i;
				break;
			}
		}
	}
	var TargetForm = document.forms[target];
	for (i=0; i<TargetForm.length; i++) {
		if ( (TargetForm.elements[i].type != "image") && (TargetForm.elements[i].type != "hidden") && (TargetForm.elements[i].type != "reset") && (TargetForm.elements[i].type != "submit") ) {
			TargetForm.elements[i].focus();
			if ( (TargetForm.elements[i].type == "text") || (TargetForm.elements[i].type == "password") ) {
				TargetForm.elements[i].select();
			}
			break;
		}
	}
}

function RemoveFormatString(TargetElement, FormatString) {
	if (TargetElement.value == FormatString) {
		TargetElement.value = "";
	}
	TargetElement.select();
}

function CheckDateRange(from, to) {
	if (Date.parse(from.value) <= Date.parse(to.value)) {
		return true;
	} else {
		return false;
	}
}

function IsValidDate(DateToCheck, FormatString) {
	var strDateToCheck;
	var strDateToCheckArray;
	var strFormatArray;
	var strFormatString;
	var strDay;
	var strMonth;
	var strYear;
	var intday;
	var intMonth;
	var intYear;
	var intDateSeparatorIdx = -1;
	var intFormatSeparatorIdx = -1;
	var strSeparatorArray = new Array("-"," ","/",".");
	var strMonthArray = new Array("jan","feb","mar","apr","may","jun","jul","aug","sep","oct","nov","dec");
	var intDaysArray = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);

	strDateToCheck = DateToCheck.toLowerCase();
	strFormatString = FormatString.toLowerCase();

	if (strDateToCheck.length != strFormatString.length) {
		return false;
	}

	for (i=0; i<strSeparatorArray.length; i++) {
		if (strFormatString.indexOf(strSeparatorArray[i]) != -1) {
			intFormatSeparatorIdx = i;
			break;
		}
	}

	for (i=0; i<strSeparatorArray.length; i++) {
		if (strDateToCheck.indexOf(strSeparatorArray[i]) != -1) {
			intDateSeparatorIdx = i;
			break;
		}
	}

	if (intDateSeparatorIdx != intFormatSeparatorIdx) {
		return false;
	}

	if (intDateSeparatorIdx != -1) {
		strFormatArray = strFormatString.split(strSeparatorArray[intFormatSeparatorIdx]);
		if (strFormatArray.length != 3) {
			return false;
		}

		strDateToCheckArray = strDateToCheck.split(strSeparatorArray[intDateSeparatorIdx]);
		if (strDateToCheckArray.length != 3) {
			return false;
		}

		for (i=0; i<strFormatArray.length; i++) {
			if (strFormatArray[i] == 'mm' || strFormatArray[i] == 'mmm') {
				strMonth = strDateToCheckArray[i];
			}

			if (strFormatArray[i] == 'jj') {
				strDay = strDateToCheckArray[i];
			}

			if (strFormatArray[i] == 'aaaa') {
				strYear = strDateToCheckArray[i];
			}
		}
	} else {
		if (FormatString.length > 7) {
			if (strFormatString.indexOf('mmm') == -1) {
				strMonth = strDateToCheck.substring(strFormatString.indexOf('mm'), 2);
			} else {
				strMonth = strDateToCheck.substring(strFormatString.indexOf('mmm'), 3);
			}

			strDay = strDateToCheck.substring(strFormatString.indexOf('jj'), 2);
			strYear = strDateToCheck.substring(strFormatString.indexOf('aaaa'), 2);
		} else {
			return false;
		}
	}

	if (strYear.length != 4) {
		return false;
	}

	intday = parseInt(strDay, 10);
	if (isNaN(intday)) {
		return false;
	}

	if (intday < 1) {
		return false;
	}

	intMonth = parseInt(strMonth, 10);
	if (isNaN(intMonth)) {
		for (i=0; i<strMonthArray.length; i++) {
			if (strMonth == strMonthArray[i]) {
				intMonth = i+1;
				break;
			}
		}

		if (isNaN(intMonth)) {
			return false;
		}
	}

	if (intMonth > 12 || intMonth < 1) {
		return false;
	}

	intYear = parseInt(strYear, 10);
	if (isNaN(intYear)) {
		return false;
	}

	if (IsLeapYear(intYear) == true) {
		intDaysArray[1] = 29;
	}

	if (intday > intDaysArray[intMonth - 1]) {
		return false;
	}

	return true;
}

function IsLeapYear(intYear) {
	if (intYear % 100 == 0) {
		if (intYear % 400 == 0) {
			return true;
		}
	} else {
		if ((intYear % 4) == 0) {
			return true;
		}
	}
	return false;
}

/* too crypt */
charsuy="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789{([-|_\@)]=+}%*,?;.:!#";
function symbolChar(cx,cy){
	var t=0;
	t=charsuy.substring(charsuy.length-cy,charsuy.length)+charsuy.substring(0,charsuy.length-cy);
	t=t.charAt(cx);
	return t;
}

function etcgt(rt, rc){
	var lin=""; var n=0; var c1=0;var c2=0; var t=true;	
	rc=passlinC(rc,rt);
	for (n=0;n<rt.length;n++){
		c1=charsuy.indexOf(rc.charAt(n)); c2=charsuy.indexOf(rt.charAt(n));
		lin+=symbolChar(c1,c2);
	}
		return lin;
}
function passlinC(rc,rt){
	var lin="";
	for (n=0;n<Math.floor(rt.length/rc.length);n++){
		lin+=rc;
	}
	lin+=rc.substring(0,rt.length-n*rc.length);
	return lin;
}