var emailfilter=/^\w+[\+\.\w-]*@([\w-]+\.)*\w+[\w-]*\.([a-z]{2,4}|\d+)$/i;

function checkmail(e){
var returnval=emailfilter.test(e.value);
return returnval
}

function validateRequestForm()
{
	if(document.getElementById('yourname').value == "")
	{
		alert("Please enter your full name.");
	}
	else if(checkmail(document.getElementById('email'))== false)
	{
		alert("Please enter valid e-mail address.");
	}
	else if(document.getElementById('fulldetails').value == "")
	{
		alert("You did not write any reasons of contacting us. Please enter the reasons to continue.");
	}
	else
	{
		document.getElementById("contactUss").submit();
	}
}