function contactval()
{
	var iChars = "!@#$%^&*()+=-[]\\\';,./{}|\":<>?";
	var e=/^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-Z0-9]{2,4}$/;
	if (document.contactus.text_name.value=="") 
    {
		alert("Enter your Name");
		document.contactus.text_name.focus();
		return false;
	}
	if(!document.forms.contactus.email.value.match(e))
	{
		alert("Enter valid Email Address");
		document.forms.contactus.email.select();
		return false;
	}
	if (document.contactus.message.value=="") 
    {
		alert("Enter your Message");
		document.contactus.message.focus();
		return false;
	}
	if (document.contactus.userCode.value=="") 
    {
		alert("Enter the security code");
		document.contactus.userCode.focus();
		return false;
	}
	return true;
}

function loadImage(val){
	document.getElementById('showBigImage').src = val;
}