function trim(str)
{
	return str.replace(/^\s+|\s+$/g,'');
}

function echeck(str) {

		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		  	document.getElementById('guestEmailStatus').innerHTML = '<span class="redtext">Please enter valid email...</span>';
			document.contactForm.email.value = "";
			document.contactForm.email.focus();
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   	document.getElementById('guestEmailStatus').innerHTML = '<span class="redtext">Please enter valid email...</span>';
			document.contactForm.email.value = "";
			document.contactForm.email.focus();
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    document.getElementById('guestEmailStatus').innerHTML = '<span class="redtext">Please enter valid email...</span>';
			document.contactForm.email.value = "";
			document.contactForm.email.focus();

		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    document.getElementById('guestEmailStatus').innerHTML = '<span class="redtext">Please enter valid email...</span>';
			document.contactForm.email.value = "";
			document.contactForm.email.focus();

		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    document.getElementById('guestEmailStatus').innerHTML = '<span class="redtext">Please enter valid email...</span>';
			document.contactForm.email.value = "";
			document.contactForm.email.focus();

		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    document.getElementById('guestEmailStatus').innerHTML = '<span class="redtext">Please enter valid email...</span>';
			document.contactForm.email.value = "";
			document.contactForm.email.focus();

		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
			document.getElementById('guestEmailStatus').innerHTML = '<span class="redtext">Please enter valid email...</span>';
			document.contactForm.email.value = "";
			document.contactForm.email.focus();
		    return false
		 }

 		 return true					
	}
function checkContactForm()
{
	var emailID=trim(document.contactForm.email.value);
	if ( trim(document.contactForm.name.value)  == ""){	
		document.getElementById('guestNameStatus').innerHTML = '<span class="redtext">Please enter your name...</span>';
		document.contactForm.name.value = "";
		document.contactForm.name.focus();
		return false;
	}else{
		document.getElementById('guestNameStatus').innerHTML = '';
	}
	if ( trim(document.contactForm.email.value)  == ""){	
		document.getElementById('guestEmailStatus').innerHTML = '<span class="redtext">Please enter your email...</span>';
		document.contactForm.email.value = "";
		document.contactForm.email.focus();
		return false;
	}else{
		document.getElementById('guestEmailStatus').innerHTML = '';
	}
	if (echeck(emailID)==false){
		document.contactForm.email.value = "";
		document.contactForm.email.focus();
		return false
	}
	if ( trim(document.contactForm.message.value)  == ""){	
		document.getElementById('guestMessageStatus').innerHTML = '<span class="redtext">Please enter your message...</span>';
		document.contactForm.message.value = "";
		document.contactForm.message.focus();
		return false;
	}else{
		document.getElementById('guestMessageStatus').innerHTML = '';
	}
}