function valida()
{
var doc=document.frm1;
if(doc.name.value=='')
{
alert("Please Enter Your Name!");
doc.name.focus();
return false;
} 
if(doc.email.value=='')
{
alert("Please Enter Your Email!");
doc.company_name.focus();
return false;
} 
if (!(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/.test(doc.email.value))) {
			alert("Invalid Email ID. Please Enter Your correct email ID.");
			doc.email.focus();
			return (false);
	}
if(doc.comment.value=='')
{
alert("Please Enter Your Comment!");
doc.phone.focus();
return false;
} 
}