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

		if(alltrim(document.frm.fname.value) == "")
	   {
		alert("Please enter your name.");
		document.frm.fname.value = "";
		document.frm.fname.focus();
		return false;
	}

	
	if(document.frm.email.value == "" || document.frm.email.value == "Email"  )
	{
		alert("Please enter email address.");
		document.frm.email.value = "";
		document.frm.email.focus();
		return false;
	}
	else
	{
		emailExp= /^\w+(\-\w+)*(\.\w+(\-\w+)*)*@\w+(\-\w+)*(\.\w+(\-\w+)*)+$/;
	 	 if (!(emailExp.test(document.frm.email.value)))
		{ 
			   alert("Invalid email address.");
			   document.frm.email.focus();
			   return false;  
		} 
	}
	
	

}