function emptyvalidation(entered, alertbox)
{
with (entered)
{
if (value==null || value=="")
{if (alertbox!="") {alert(alertbox);} return false;}
else {return true;}
}
} 




function emailvalidation(entered, alertbox)
{
with (entered)
{
apos=value.indexOf("@"); 
dotpos=value.lastIndexOf(".");
lastpos=value.length-1;
if (apos<1 || dotpos-apos<2 || lastpos-dotpos>3 || lastpos-dotpos<2) 
{if (alertbox) {alert(alertbox);} return false;}
else {return true;}
}
} 




function formvalidation(thisform)
{
with (thisform)
{
if (emptyvalidation(item,"Error ! Please type in your Item No !")==false) {item.focus(); return false;}
if (emptyvalidation(name,"Error ! Please type in your Name !")==false) {name.focus(); return false;}
if (emptyvalidation(phone1,"Error ! Please type in phone !")==false) {phone1.focus(); return false;}
if (emptyvalidation(email,"Error ! Please type in your Email Address !")==false) {email.focus(); return false;}
if (emailvalidation(email,"Error ! Please provide with your valid Email Address !")==false) {email.focus(); return false;}
if (emptyvalidation(street1,"Error ! Please type in your Street Address !")==false) {street1.focus(); return false;}
if (emptyvalidation(city,"Error ! Please type in your City name	 !")==false) {city.focus(); return false;}

if(thisform.us_state.value=="NA"){
	alert("Please Select Your State!");
	thisform.us_state.focus();
	return false;
	}
	
	
if(thisform.zip.value.length<5){
	alert("Please Enter valid zip code !");
	thisform.zip.focus();
	return false;
	}
else
{
	document.contact.submit();
}

}
}