function checknumber(object_value)
    {

    if (object_value.length == 0)
        return false;
	var start_format = " .+-0123456789";
	var number_format = " .0123456789";
	var check_char;
	var decimal = false;
	var trailing_blank = false;
	var digits = false;


	check_char = start_format.indexOf(object_value.charAt(0))

	if (check_char == 1)
	    decimal = true;
	else if (check_char < 1)
		return false;
        

	for (var i = 1; i < object_value.length; i++)
	{
		check_char = number_format.indexOf(object_value.charAt(i))
		if (check_char < 0)
			return false;
		else if (check_char == 1)
		{
			if (decimal)	
				return false;
			else
				decimal = true;
		}
		else if (check_char == 0)
		{
			if (decimal || digits)	
				trailing_blank = true;

		}
	        else if (trailing_blank)
			return false;
		else
			digits = true;
	}	

    return true
}


function CheckFormItems(theForm)
{
	var ok = true;

	for (var i = 0; i < theForm.elements.length; i++) 
	{
			var e = theForm.elements[i];
			

			
			
			if (!(e.name.indexOf('def_')>= 0))
			
			{

				if ( !(typeof(eval('theForm.elements["dfs_' + e.name + '"]')) == "undefined") )			
					{
					defselval = eval('theForm.elements["dfs_' + e.name + '"].value');
					selvalues = defselval.split('_');
					selrequired = selvalues[0];
					selalert = selvalues[1];
					if (selrequired == 'req')
						{
						sreq = true;
						}
					else
						sreq = false;
						
					if (sreq && e.value == 'null')
						{
						alert(selalert);
						return false;
						}
					
					}

			
				if ( !(typeof(eval('theForm.elements["def_' + e.name + '"]')) == "undefined") )
					{
					defval = eval('theForm.elements["def_' + e.name + '"].value');
					
					values = defval.split('_');
					datatype = values[0];
					required = values[1];
					alertmessage = values[2];
					alertmessage2 = values[3];
				
					if (required == 'req')
						req = true;
					else
						req = false;
					
					if (datatype == 'int' || datatype == 'float')
						{
						needN = true;
						}
					else
						needN = false;
						
						
					if (req && e.value == '')
						{
						alert(alertmessage);
						e.focus();
						return(false);
						}
						
					if (!checknumber(e.value) && needN)
						{
						alert(alertmessage2);
						e.focus();
						return(false);
						}

					}
			}
	}

	return (true);

}



// opens calendar
function OpenCalendar(formfield,language,type,date,mapdir) {

	url = mapdir + '/js/calendar2.cfm?language=' + language + '&type=' + type + '&formfield=' + formfield + '&date=' + escape(date);
	if (type == "datetime")
		win = window.open(url,'calendar','height=250,width=320');
	else
		win = window.open(url,'calendar','height=250,width=270');
	win.focus();

}



// function for delete button
function AskToDelete(form_object, question) {
	if(confirm(question)) {
		form_object.elements['ActionType'].value = 'DELETE';
		return true;
	}
	else
		return false;
}

// function for change forms action type
function ChangeActionType(form_object, ActionTypeValue) {
	if(ActionTypeValue != "") {
		form_object.elements['ActionType'].value = ActionTypeValue;
		return true;
	}
	else
		return false;
}

// function for alert button
function ShowAlertMessage(message) {
	alert(message);
	return true;
}

// function for confirm button
function ShowConfirmMessage(question) {
	if(confirm(question)) {
		return true;
	}
	else
		return false;
}