function focusfirstname()
{
window.document.form1.elements[0].focus();
}
function checkdata()
{	
		
		var flag=0;
		var form=window.document.form1
		var txtemail=form.txtemail.value
		fval=txtemail.indexOf('@')
		lval=txtemail.lastIndexOf('@')
		dotval=txtemail.lastIndexOf('.')
		length1=form.txtemail.value.length
		if(form.txtfirstname.value=="")
		{
		alert('Please fill up FIRST NAME');
		form.txtfirstname.focus();
		flag=1;
		}
		else if(form.txtlastname.value=="")
		{	alert("Please fill up LAST NAME")
			form.txtlastname.focus();
			flag=1;
		}
		else if(form.txtemail.value=="")
		{	alert("Please fill up EMAIL ADDRESS")
			form.txtemail.focus();
			flag=1;
		}
		else if(fval<1 || fval>length1-2 || fval!=lval || !(dotval>lval+1) || dotval>length1-2)
		{
		alert("enter valid email address");
		form.txtemail.focus();
		flag=1;
		}
		else if(form.txtphnumber.value=="")
		{	alert("Please fill up PHONE NUMBER")
			form.txtphnumber.focus();
			flag=1;
		}
		else if(isNaN(form.txtphnumber.value))
		{	
			alert("Please fillup a valid phone number");
			form.txtphnumber.focus();
			flag=1;
		}
		
		else if(form.txtareaaddress.value=="")
		{	alert("Please fill up ADDRESS OF COMPANY/ORGANISATION")
			form.txtareaaddress.focus();
			flag=1;
		}
		
		else if(form.txtareacomment.value=="")
		{	alert("Please fill up COMMENT")
			form.txtareacomment.focus();
			flag=1;
		}
		
		
		
		if(flag==0)
		return(true);
		if(flag==1)
		return(false);
}