function contactForm()
{	
	var objFrm = document.contactFrm;		
	var emailidVar = trim(objFrm.emailid.value);	
	var interestedVar = trim(objFrm.interested.value);		
	var attachmentVar = trim(objFrm.attachment.value);	
	var queryVar = trim(objFrm.query.value);
	var others = trim(objFrm.others.value);
	if ( emailidVar == '' ) {
		alert("Please enter email address.");
		objFrm.emailid.focus();
		return false;		
	}
	
	if (! CheckEmail(emailidVar) ) {	
		alert("Please enter valid email address.");
		objFrm.emailid.focus();
		return false;
	}
	
	if(others=='')
	{
		if ( interestedVar == '' ) {
			alert("Please select your interest.");
			objFrm.interested.focus();
			return false;		
		}
	}
	
	if ( attachmentVar !== "" && validateDoc(attachmentVar) ) {
		alert("Please upload valid document file.");
		objFrm.attachment.focus();
		return false;
	}
	
	if ( queryVar == '' ) {
		alert("Please enter your query.");
		objFrm.query.focus();
		return false;		
	}	
	
	return true;
}