/*
    This file contains all the Global validations required for the Auction Project
    Author:Jayakishore Sure
	DateCreated:04/09/02
*/

//The checkEmail function is used to check whether valid email is entered or not

function checkEmail(workemail){


    vEMailID=workemail;
	var atPos= vEMailID.indexOf("@") + 1
	var lastDotPos= vEMailID.lastIndexOf(".") + 1
	var firstDotPos = vEMailID.indexOf(".") + 1
	var atInstances=0
	var dotInstances=0
	var inValid = new Array()
	var errorMessages = new Array()
	var errNo = 0
		
	for(var i=0;i<vEMailID.length;i++)
	{
		if(vEMailID.charAt(i)=="@" )
		   atInstances+=1
		else if(vEMailID.charAt(i)==".")
		   dotInstances=1
	}

	inValid[errNo] = (atInstances==0)
	errorMessages[errNo] = "@ symbol is missing"
	errNo++

	inValid[errNo] = (dotInstances==0)
	errorMessages[errNo] = ". symbol is missing"
	errNo++

	inValid[errNo] = (atInstances>1)
	errorMessages[errNo] = "@ symbol should not repeat"
	errNo++

	inValid[errNo] = (Math.abs(firstDotPos-atPos)==1)
	errorMessages[errNo] = "@ and . symbols can't come together"
	errNo++

	inValid[errNo] = ((lastDotPos-atPos)<=1)
	errorMessages[errNo] = ". symbol is missing"
	errNo++

	inValid[errNo] = (atPos==vEMailID.length)
	errorMessages[errNo] = "@ symbol can't appear at end"
	errNo++

	inValid[errNo] = (lastDotPos==vEMailID.length)
	errorMessages[errNo] = ". symbol can't appear at end"
	errNo++

	inValid[errNo] = (atPos==0)
	errorMessages[errNo] = "@ symbol is missing"
	errNo++

	inValid[errNo] = (atPos==1)
	errorMessages[errNo] = "@ symbol should not appear at first position"
	errNo++

	inValid[errNo] = (firstDotPos==0)
	errorMessages[errNo] = ". symbol is missing"
	errNo++

	inValid[errNo] = (firstDotPos==1)
	errorMessages[errNo] = ". symbol should not appear at first position"
	errNo++

	inValid[errNo] = (vEMailID.indexOf(" ")>=0)
	errorMessages[errNo] = "E-mail can't contain blank spaces."
	errNo++

	inValid[errNo] = (vEMailID.indexOf("/")>=0) || (vEMailID.indexOf("\\")>=0)
	errorMessages[errNo] = "E-mail can't contain \\ or /"
	errNo++

	var fullErrorMessage = "Invalid " + name + " email address.\n"
	for(var ind=0; ind<errNo; ind++)
	{
	if(inValid[ind])
	{
		fullErrorMessage += errorMessages[ind] + "\n"
		
		return false
	}
	}
	var SingleQuotePos = vEMailID.indexOf("'") 
	if(SingleQuotePos!=-1)
	{
		
		return false

	} 
	return true;

}

function checkPhone(phone) {
	return (phone.length > 4);
}

// isInvalidChar function is used to check whether valid characters are used or not

function isInvalidChar(field){ 
    var invalidChars ="\\\"<>()\`\'~!@#^[]{}|?-+*$%:;.";
    for (i=0;i < field.length; i++){
	if(invalidChars.indexOf(field.charAt(i))!= -1 ){
		
		 return true;	
	    }
    }
	return false;   
}

// isInvalidChar function is used to check whether valid characters are used or not

function isInvalidPayment(field){ 
    var invalidChars ="\"`";
    for (i=0;i < field.length; i++){
	if(invalidChars.indexOf(field.charAt(i))!= -1 ){
		
		 return true;	
	    }
    }
	return false;   
}

// isInvalidChar function is used to check whether valid characters are used or not

function isInvalidAddress(field){ 
    var invalidChars ="\\\/\"<>\`\'~!@#^[]{}|?+*$%&";
    for (i=0;i < field.length; i++){
	if(invalidChars.indexOf(field.charAt(i))!= -1 ){
		
		 return true;	
	    }
    }
	return false;   
}
// isNumber is used to check whether the entered values are numeric or not

//function for opening the excel page
 function openExcel(spreadsheetname,exceldir)
{
	
window.open('displayexcel.jsp?exc='+spreadsheetname+'&exceldir='+exceldir);
	
}
function saveExcel(spreadsheetname,exceldir)
{
window.open('displayexcel.jsp?exc='+spreadsheetname+'&exceldir='+exceldir+'&saveastarget=true');
}

//function for ending the excel page

function isNumber(field){
    if(isNaN(field)){
     
        return true;
    }
    if(field.charCodeAt(0)==43){
       
        return true;
    }
	field=parseInt(field);
    if(field < 0){
         
        return true;
    }
    if(field == 0){
		
        return true;
    }
    return false;
}
// isNumber is used to check whether the entered values are numeric or not
function isValidNumber(field){
     if(isNaN(field)){     
        return true;
    }
    if(field.charCodeAt(0)==43){       
        return true;
    }
	field=parseInt(field);
    if(field < 0){         
        return true;
    }
    return false;
}
// is Whilespace is used to check whether the entered values contains all white spaces or not
function isWhitespace(controlname){

	
    //count of the whitespaces
    var count=0;  
    var len;    //length of the input
	field=controlname.value;
    len=field.length;
	
    for (i=0; i<len; i++){  
        charcode =field.charCodeAt(i);
		 if(charcode ==32){
            count =parseInt(count)+1;
        }
    }
	
    if( count ==len){
		 controlname.value="";
		 return ""
    }
	else
	{
		return field;
	}



function selectAll(frmNm){          
    var TotalBoxes = 0;
    var TotalOn = 0;
    for (var i=0;i<frmNm.elements.length;i++){
        var e = frmNm.elements[i];
 if (e.type=='checkbox'){
            TotalBoxes++;
     if ((e.checked) && (e.name!="chkAll") ){
                TotalOn++;
            }
 }
    }
    if (TotalOn != (TotalBoxes-1)){
        for (var i=0;i<frmNm.elements.length;i++){
            var e = frmNm.elements[i];
     if (e.type=='checkbox'){
                e.checked = true;
            }                
 }        
    }else{
        for (var i=0;i<frmNm.elements.length;i++){
            var e = frmNm.elements[i];
     if (e.type=='checkbox'){
                e.checked = false;
            }                
 }        
    }
}
 
/* Objective:   to select and deselect "Select All" checkbox on the
page, 
                if all the checkboxes are clicked                
 */
function selectselectAll(frmNm){
    var TotalBoxes = 0;
    var TotalOn = 0;
    for (var i=0;i<frmNm.elements.length;i++){
        var e = frmNm.elements[i];
 if ((e.name != 'chkAll') && (e.type=='checkbox')){
            TotalBoxes++;
     if (e.checked){
                TotalOn++;
            }
 }
    }
    if (TotalBoxes==TotalOn){
        frmNm.chkAll.checked=true;
    }else{
        frmNm.chkAll.checked=false;
    }        
}

}

function show_calendar(str_target, str_datetime) {
	var arr_months = ["January", "February", "March", "April", "May", "June",
		"July", "August", "September", "October", "November", "December"];
	var week_days = ["Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"];
	var n_weekstart = 0; // day week starts from (normally 0 or 1)

	var dt_datetime = (str_datetime == null || str_datetime =="" ?  new Date() : new Date(str_datetime));
	var dt_prev_month = new Date(dt_datetime);
	dt_prev_month.setMonth(dt_datetime.getMonth()-1);
	var dt_next_month = new Date(dt_datetime);
	dt_next_month.setMonth(dt_datetime.getMonth()+1);
	var dt_firstday = new Date(dt_datetime);
	dt_firstday.setDate(1);
	dt_firstday.setDate(1-(7+dt_firstday.getDay()-n_weekstart)%7);
	var dt_lastday = new Date(dt_next_month);
	dt_lastday.setDate(0);
	
	// html generation (feel free to tune it for your particular application)
	// print calendar header
	var str_buffer = new String (
		"<html>\n"+
		"<head>\n"+
		"	<title>Calendar</title>\n"+
		"</head>\n"+
		"<body bgcolor=\"White\" topmargin=0 leftmargin=0>\n"+
		"<table class=\"clsOTable\" cellspacing=\"0\" border=\"0\" width=\"100%\">\n"+
		"<tr><td bgcolor=\"#4682B4\">\n"+
		"<table cellspacing=\"1\" cellpadding=\"3\" border=\"0\" width=\"100%\">\n"+
		"<tr>\n	<td bgcolor=\"#FFFFFF\"><a href=\"javascript:window.opener.show_calendar('"+
		str_target+"', '"+ dt2dtstr(dt_prev_month)+"'+document.cal.time.value);\"><b color=\"#FFFFFF\"><<</b></a></td>\n"+
		"	<td bgcolor=\"#4682B4\" colspan=\"5\">"+
		"<font color=\"white\" face=\"tahoma, verdana\" size=\"2\">"
		+arr_months[dt_datetime.getMonth()]+" "+dt_datetime.getFullYear()+"</font></td>\n"+
		"	<td bgcolor=\"#FFFFFF\" align=\"right\"><a href=\"javascript:window.opener.show_calendar('"
		+str_target+"', '"+dt2dtstr(dt_next_month)+"'+document.cal.time.value);\">>></a></td>\n</tr>\n"
	);

	var dt_current_day = new Date(dt_firstday);
	// print weekdays titles
	str_buffer += "<tr>\n";
	for (var n=0; n<7; n++)
		str_buffer += "	<td bgcolor=\"#87CEFA\">"+
		"<font color=\"white\" face=\"tahoma, verdana\" size=\"2\">"+
		week_days[(n_weekstart+n)%7]+"</font></td>\n";
	// print calendar table
	str_buffer += "</tr>\n";
	while (dt_current_day.getMonth() == dt_datetime.getMonth() ||
		dt_current_day.getMonth() == dt_firstday.getMonth()) {
		// print row heder
		str_buffer += "<tr>\n";
		for (var n_current_wday=0; n_current_wday<7; n_current_wday++) {
				if (dt_current_day.getDate() == dt_datetime.getDate() &&
					dt_current_day.getMonth() == dt_datetime.getMonth())
					// print current date
						str_buffer += "	<td bgcolor=\"#FFB6C1\" align=\"right\">";
				else if (dt_current_day.getDay() == 0 || dt_current_day.getDay() == 6)
					// weekend days
					str_buffer += "	<td bgcolor=\"#DBEAF5\" align=\"right\">";
				else
					// print working days of current month
					str_buffer += "	<td bgcolor=\"white\" align=\"right\">";

				if (dt_current_day.getMonth() == dt_datetime.getMonth())
					// print days of current month
					str_buffer += "<a href=\"javascript:window.opener."+str_target+
					".value='" + dt2dtstr(dt_current_day)+"'+document.cal.time.value; window.close();\">"+
					"<font color=\"black\" face=\"tahoma, verdana\" size=\"2\">";
					
				else 
					// print days of other months
					str_buffer += "<a href=\"javascript:window.opener."+str_target+
					".value='"+dt2dtstr(dt_current_day)+"'+document.cal.time.value; window.close();\">"+
					"<font color=\"gray\" face=\"tahoma, verdana\" size=\"2\">";
				str_buffer += dt_current_day.getDate()+"</font></a></td>\n";
				dt_current_day.setDate(dt_current_day.getDate()+1);
		}
		// print row footer
		str_buffer += "</tr>\n";
	}
	// print calendar footer
	str_buffer +="<form name=\"cal\">\n<tr><td colspan=\"7\" bgcolor=\"#87CEFA\">"+
		"<font color=\"White\" face=\"tahoma, verdana\" size=\"2\">"+
		"<input type=\"hidden\" name=\"time\" value=\""+
		"\" size=\"8\" maxlength=\"8\"></font></td></tr>\n</form>\n" +
		"</table>\n" +
		"</tr>\n</td>\n</table>\n" +
		"</body>\n" +
		"</html>\n";

	var vWinCal = window.open("", "Calendar", 
		"width=200,height=165,status=no,resizable=yes,top=300,left=300");
	
	vWinCal.opener = self;
	var calc_doc = vWinCal.document;
	
	calc_doc.write (str_buffer);
	//focus_target = str_target+".focus();";
	calc_doc.close();

}
// datetime parsing and formatting routimes. modify them if you wish other datetime format
function str2dt (str_datetime) {
	var re_date = /^(\d+)\/(\d+)\/(\d+)\s$/;
	if (!re_date.exec(str_datetime))
		return alert("Invalid Datetime format: "+ str_datetime);
	return (new Date (RegExp.$3, RegExp.$2-1, RegExp.$1));
}
function dt2dtstr (dt_datetime) {
	return (new String (((dt_datetime.getMonth()<9)?"0":"")+(dt_datetime.getMonth()+1)+ "/"+ ((dt_datetime.getDate()<9)?"0":"")+ dt_datetime.getDate() + "/" + dt_datetime.getFullYear()+""));
	//return (new String ((dt_datetime.getMonth()+1)+ "/"+ dt_datetime.getDate() + "/" + dt_datetime.getFullYear()+""));
}
function dt2tmstr (dt_datetime) {
	return (new String (
			dt_datetime.getHours()+":"+dt_datetime.getMinutes()+":"+dt_datetime.getSeconds()));
}

function trim(inputString) {
   // Removes leading and trailing spaces from the passed string. Also removes
   // consecutive spaces and replaces it with one space. If something besides
   // a string is passed in (null, custom object, etc.) then return the input.
   if (typeof inputString != "string") { return inputString; }
   var retValue = inputString;
   var ch = retValue.substring(0, 1);
   while (ch == " ") { // Check for spaces at the beginning of the string
      retValue = retValue.substring(1, retValue.length);
      ch = retValue.substring(0, 1);
   }
   ch = retValue.substring(retValue.length-1, retValue.length);
   while (ch == " ") { // Check for spaces at the end of the string
      retValue = retValue.substring(0, retValue.length-1);
      ch = retValue.substring(retValue.length-1, retValue.length);
   }
   while (retValue.indexOf("  ") != -1) { // Note that there are two spaces in the string - look for multiple spaces within the string
      retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); // Again, there are two spaces in each of the strings
   }
   return retValue; // Return the trimmed string back to the user
} // Ends the "trim" function