function validateForm(){
		var REG_EMAIL = /^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,4}(?:\.[a-z]{2})?)$/i;
		var numericExpression = /^[0-9]+$/;	
				    if(document.contact.Name.value=='Name'){
									alert('Please enter your name.');
									return false;
						}else if(document.contact.Email.value=='Email'){
									alert('Please enter your email address.');
									return false;
						}else if(!REG_EMAIL.test(document.contact.Email.value)){
									alert('Please enter a valid email address.');
									return false;
									}}
									
function fieldFocus(elem)
{
    if(elem.value == elem.defaultValue)
	{
	    elem.select();
	}
}

function fieldBlur(elem)
{
    if(elem.value == '')
    {
        elem.value = elem.defaultValue;
        return;
    }
}