/*
javascript for Administration area
21/11/02 Brian Altman (Alfresco Design)
*/

function Login (theForm) {
	var error = 0;
	with (theForm) {
		if ( username.value.length == 0 || password.value.length == 0 ) {
			alert("Please enter your username and password");
			document.form1.username.focus();
		} else {
			theForm.submit();
		}
	}
}

function unCheckAll(theForm, cBoxName) {
	with (theForm) {
		for (var i = 0; i < elements.length; ++i) {
			if (elements[i].name.search(cBoxName) != -1) {
				elements[i].checked = 0;
			}
		}
	}
}

function isValidPwd(pwd){
var AlphaNumeric =/^[a-z0-9]+$/;
	if(pwd.value.length < 6) {
		alert("A valid password must be between 6 and 8 Characters.");
		return false;
	} else if(!AlphaNumeric.test(pwd.value)) {
		alert("A valid password must be lower case and alphanumeric characters. (a-z,0-9)");
		return false;
	}else {return true;}
}

// Check whether string s is empty.
function isEmpty(s) {
   return ((s == null) || (s.length == 0))
}

function isEmail (s) {
 var reEmail = /^.+\@.+\..+$/
 	if (isEmpty(s)) {
       return false;
	} else {
       return reEmail.test(s);
    }
}

// Removes all characters which appear in string bag from string s.
function stripCharsInBag (s, bag) {
    var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++) {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

//Limit the number of characters per textarea
function textCounter(field,cntfield,maxlimit) {
	if (field.value.length > maxlimit) {// if too long...trim it!
		field.value = field.value.substring(0, maxlimit);		
		alert("Oops! You have exceeded the allowable entry limit!");
	} else {// otherwise, update 'characters left' counter
		cntfield.value = maxlimit - field.value.length;
	}
}

/** ------------------------ Add Delete Functionality for Select pull downs -------------- **/
//selectObj is defined on the form page
//myOption is defined on the form page

function stripSpChar(myStr) {
	var copyStr = myStr;
	var arrString = copyStr.split("~");
	for( var i=0; i < (arrString.length -1);i++) {
		myStr = myStr.replace("~", "&126;");
	}
	var arrString = copyStr.split("^");
	for( var i=0; i < (arrString.length -1);i++) {
		myStr = myStr.replace("^", "&94;");
	}
	return myStr;
}

function fixSpChar(myStr) {
	var copyStr = myStr;
	var arrString = copyStr.split("&126;");
	for( var i=0; i < (arrString.length -1);i++) {
		myStr = myStr.replace("&126;","~");
	}
	var arrString = copyStr.split("&94;");
	for( var i=0; i < (arrString.length -1);i++) {
		myStr = myStr.replace("&94;", "^");
	}
	return myStr;
}

function addOption(selectObj,myText,myVal) {
	selectObj.options[selectObj.length] = new Option(myText, myVal);
	selectObj[selectObj.length-1].selected = true;//Set selected to second item in list, because it always adds the new option to the top, but below the "-Please Select-" option
}

function deleteOption(selectObj) {
	if((selectObj.length != 1) && (selectObj[selectObj.selectedIndex].value!= 'S')){
		var confirmed = confirm("Are you positive that you want to delete the selected item?");
		if(confirmed) {
			selectObj.options[selectObj.selectedIndex] = null;
			selectObj[0].selected = true;
		}
		return confirmed;
	} else {
		alert("Please select an item to delete.");
	}
}

function isNumber(myInput){
	var comma = /,/;
	if(comma.test(myInput.value)){
		alert("Please do not use commas in number fields.");
		myInput.focus();
	} else {
		var num =/(^\d+$)|(^\d+\.\d+$)/;
		var isNum = num.test(myInput.value);
		if(!isNum){
			alert("This field must contain a number.");
			myInput.value="";
			myInput.focus();
		}
	}
}//end isNumber

/*
function checkDate(value){
    var dateregex=/^[ ]*[0]?(\d{1,2})\/(\d{1,2})\/(\d{4,})[ ]*$/;
    var match=value.match(dateregex);
    if (match) {
         var tmpdate=new Date(match[3],parseInt(match[2])-1,match[1]);
         if (tmpdate.getDate()==parseInt(match[1]) && tmpdate.getFullYear()==parseInt(match[3]) && (tmpdate.getMonth()+1)==parseInt(match[2])){ return true; }
    }
    return false;
} */

function checkDate(dtValue){
	if (isDate(dtValue)==false){
		return false
	}
    return true
 }


var dtCh= "/";
var minYear=1900;
var maxYear=2100;

function isInteger(s){
	var i;
    for (i = 0; i < s.length; i++){   
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
    // All characters are numbers.
    return true;
}

function stripCharsInBag(s, bag){
	var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is not in bag, append to returnString.
    for (i = 0; i < s.length; i++){   
        var c = s.charAt(i);
        if (bag.indexOf(c) == -1) returnString += c;
    }
    return returnString;
}

function daysInFebruary (year){
	// February has 29 days in any year evenly divisible by four,
    // EXCEPT for centurial years which are not also divisible by 400.
    return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray(n) {
	for (var i = 1; i <= n; 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(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strDay=dtStr.substring(0,pos1)
	var strMonth=dtStr.substring(pos1+1,pos2)
	var strYear=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 : mm/dd/yyyy")
		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(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
		//alert("Please enter a valid date")
		return false
	}
return true
}