function loadURL(connection, destinationURL, arguments, triggerFunction) 
{
	connection.onreadystatechange = triggerFunction;

	//Browsers will cache text documents even if they've changed so we append a timestamp to get the latest file
	if (arguments == '')
	{
		stamp = '?' + Math.round(new Date().getTime()/1000.0);
	}
	else
	{
		stamp = '&' + Math.round(new Date().getTime()/1000.0);
	}

	connection.open("GET", destinationURL + arguments + stamp);
	connection.send(null);
}

function reportError(errMsg, errScript, errLine)
{
	errorConnection = window.XMLHttpRequest ? new XMLHttpRequest() : new ActiveXObject("Microsoft.XMLHTTP");
	loadURL(errorConnection, 'javascriptError.php', '?errMsg=' + errMsg + '&errScript=' + errScript + '&errLine=' + errLine, errorLog);
	return true;
}

function errorLog()
{
	return true;
}

function openWindow(url, width, height)
{
	ref = window.open(url, 'window',  'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width='+width+',height='+height+',left=400,top=200');
}

function callDelete(url, name)
{
	if (confirm('Are you sure you want to delete "' + name + '"?'))
	{
		document.location.href = url;
	}
	else
	{
		return false;
	}
} 

function validateForm(formArray)
{
	returnValue = true;

	for (i=0; i<formArray.length; i++)
	{
		if (returnValue)
		{
			element = document.getElementById(formArray[i][0]);

			switch (formArray[i][1])
			{
				case 'text':
				case 'password':	
				case 'textarea':
				case 'hidden':

					if ((formArray[i][2] == 'STRING' && element.value != '' && element.value != formArray[i][5]) || (formArray[i][2] == 'NUMBER' && isNumeric(element.value) && element.value != formArray[i][5]) || (formArray[i][4] > 0 && element.length < formArray[i][4]) || (formArray[i][2] == 'EMAIL' && isEmail(element.value) && element.value != formArray[i][5])  || (formArray[i][2] == 'TEL' && isTel(element.value) && element.value != formArray[i][5]) || (formArray[i][2] == 'DATE' && element.value != '' && element.value != formArray[i][5]))
					{
						highlightElement(formArray[i][0], false);
					}
					else
					{
						alert(formArray[i][3]);
						highlightElement(formArray[i][0], true);
						focusElement(element);
						returnValue = false;
					}

					break;

				case 'radio':

					var element = eval('document.forms[0].' + formArray[i][0]);
					foundItem = false;

					for (j=0; j<element.length; j++) 
					{
						if (element[j].checked) 
						{
							foundItem = true;
							break;
						}
					}

					if (!foundItem)
					{
						alert(formArray[i][3]);
						returnValue = false;
					}

					break;

				case 'check':
					
					if (element.checked)
					{
						highlightElement(formArray[i][0] + 'Border', false);
					}
					else
					{
						alert(formArray[i][3]);
						highlightElement(formArray[i][0] + 'Border', true);
						focusElement(element);
						returnValue = false;
					}

					break;

				case 'select':

					if (element.selectedIndex != 0)
					{
						highlightElement(formArray[i][0] + 'Border', false);
					}
					else
					{
						alert(formArray[i][3]);
						highlightElement(formArray[i][0] + 'Border', true);
						focusElement(element);
						returnValue = false;
					}

					break;

				case 'date':

					if (element.value == '')
					{
						alert(formArray[i][3]);
						returnValue = false;
					}				

					break;
			}
		}		
	}

	return returnValue;
}

function isNumeric(value)
{
	var validChars = "0123456789.-";
	var singleChar;
	var result = true;

	if (value.length == 0) 
	{
		return false;
	}

	for (j=0; j<value.length && result == true; j++)
	{
		singleChar = value.charAt(j);
	
		if (validChars.indexOf(singleChar) == -1)
		{
			result = false;
		}
	}

	return result;
}

function isTel(value)
{
	var validChars = "0123456789 +()";
	var singleChar;
	var result = true;

	if (value.length == 0) 
	{
		return false;
	}

	for (j=0; j<value.length && result == true; j++)
	{
		singleChar = value.charAt(j);
	
		if (validChars.indexOf(singleChar) == -1)
		{
			result = false;
		}
	}

	return result;
}

function isEmail(email)
{
	var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;

	if (reg.test(email) == false) 
	{
		return false;
	}

	return true;
}

function highlightElement(id, status)
{
	element = document.getElementById(id);

	if (status)
	{
		element.style.borderColor = '#0058DD';
		element.style.borderWidth = '2px';
		element.style.borderStyle = 'solid';
	}
	else
	{
		//element.style.borderColor = 'black';
		//element.style.borderWidth = '0';
		//element.style.borderStyle = 'solid';
		//element.style.background = 'transparent';
	}
}

function focusElement(element)
{
	element.focus();
}

function validateField(element, isNumericCheck, errorMessage)
{
	if (element)
	{
		if (isNumericCheck)
		{
			if (isNumeric(element.value))
			{
				highlight(element, false);
				return true;
			}
			else
			{
				highlight(element, true);
				element.focus();
				alert(errorMessage);
				return false;
			}
		}
		else
		{
			if (element.value != '')
			{
				highlight(element, false);
				return true;
			}
			else
			{
				highlight(element, true);
				element.focus();
				alert(errorMessage);
				return false;
			}
		}
	}
	else
	{
		return false;
	}
}

function highlight(element, onOff)
{
	if (onOff)
	{
		element.style.borderColor = 'red';
		element.style.borderWidth = '2px';
		element.style.borderStyle = 'solid';
	}
	else
	{
		element.style.borderColor = '';
		element.style.borderWidth = '';
		element.style.borderStyle = '';
	}
}

function clearField(element, normalValue)
{
	if (element.value == normalValue)
	{
		element.value = '';
	}				
}

function clearFieldAndStyle(element, normalValue)
{
	if (element.value == normalValue)
	{
		element.value = '';
		element.style.color = 'black';
	}				
}

function roundNumber(number)
{
	number = Math.round(number*Math.pow(10,2))/Math.pow(10,2);
	return formatCommas(number.toFixed(2));
}

function debug(message)
{
	element = document.getElementById('debug');
	element.style.display = 'block';
	element.value += message + "\n";
}

function setImage(element, newImage)
{
	element.src = 'http://www.williamsjettenders.com/images/en/' + newImage;
}

function setMenu(element, newImage, menuID)
{
	element.src = 'http://www.williamsjettenders.com/images/en/' + newImage;

	var position = $('#' + menuID).position();

	$('#' + menuID + 'SubMenu').css('left', position.left);
	$('#' + menuID + 'SubMenu').css('top', position.top + 39);
	$('#' + menuID + 'SubMenu').toggle();
}

function handleDefaultValue(element, enteredField, defaultValue)
{
	if (enteredField == true && element.value == defaultValue)
	{
		element.value = '';
		element.style.color = 'black';
	}
	else
	{
		if (element.value == '')
		{
			element.value = defaultValue;
			element.style.color = 'grey';
		}
	}
}