// JScript File

// functino to check contact form and submit
function chkLetterForm()
{
	var d=document;
	var df=document.form1;
	if(df.txtYName.value=="")
	{
		alert("Please enter your name");
		df.txtYName.focus();
		return false;
	}
	else if(df.txtYEmail.value=="")
	{
		alert("Please enter your email address");
		df.txtYEmail.focus();
		return false;
	}
	else if(df.txtLetter.value=="")
	{
		alert("Please enter your letter");
		df.txtLetter.focus();
		return false;
	}	

	if(checkemail(df.txtYEmail.value))
	{
	}
	else
	{
		df.txtYEmail.focus();
		return false;
	}	
}
// functino to check contact form and submit
function checkFriendForm()
{
	var d=document;
	var df=document.form1;
	if(df.txtYName.value=="")
	{
		alert("Please enter your name");
		df.txtYName.focus();
		return false;
	}
	else if(df.txtYEmail.value=="")
	{
		alert("Please enter your email address");
		df.txtYEmail.focus();
		return false;
	}	
	else if(df.txtFName.value=="")
	{
		alert("Please enter your friend's name");
		df.txtFName.focus();
		return false;
	}
	else if(df.txtFEmail.value=="")
	{
		alert("Please enter your friend's email address");
		df.txtFEmail.focus();
		return false;
	}	

	if(checkemail(df.txtFEmail.value))
	{
	}
	else
	{
		df.txtFEmail.focus();
		return false;
	}
	
	if(checkemail(df.txtYEmail.value))
	{
	}
	else
	{
		df.txtYEmail.focus();
		return false;
	}	
}

// Email validation function
function checkemail(str)
{
	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
	if (filter.test(str))
	{
		testresults=true
	}
	else
	{
		alert("Please input a valid email address!")
		testresults=false
	}
	return (testresults)
}

// Function to open a popup window at center of screen
function winOpen(theURL, Name, popW, popH, scroll) 
{ 
	var winleft = (screen.width - popW) / 2;

	var winUp = (screen.height - popH) / 2;

	winProp = 'width='+popW+',height='+popH+',left='+winleft+',top='+winUp+',scrollbars='+scroll+', resizable=1';

	Win = window.open(theURL, Name, winProp);

	if (parseInt(navigator.appVersion) >= 4)
	{ 
		Win.window.focus(); 
	}
}
///////////////////////////////////////////////////////////////////////////
function changeBackColor(bname)
{
    document.getElementById(bname).style.backgroundColor="#f88e20";
}
function changeBackColor1(bname)
{
    document.getElementById(bname).style.backgroundColor="#d75f09";
}
///////////////////////////////////////////////////////////////////////
function changeBackColor2(bname)
{
    document.getElementById(bname).style.backgroundColor="#898e33";
}
function changeBackColor2_1(bname)
{
    document.getElementById(bname).style.backgroundColor="#636728";
}
///////////////////////////////////////////////////////////////////////