function checkForm() {	// namen checken	if (document.form.name.value == "") {		alert("Please, don't forget to fill in your Name");		document.form.name.focus();		return false;	}			// email checken	if (document.form.address1.value == "") {		alert("Please, don't forget to fill in your Address");		document.form.address1.focus();		return false;	}		if (document.form.contact_numbers1.value == "") {		alert("Please, don't forget to fill in your Contact Number");		document.form.contact_numbers1.focus();		return false;	}		if (document.form.email_address.value == "") {		alert("Please, don't forget to fill in your E-mail Address");		document.form.email_address.focus();		return false;	}		if (document.form.transaction.value == "") {		alert("Please, don't forget to specify Type of Transaction");		document.form.transaction.focus();		return false;	}		if (document.form.supplier_name.value == "") {		alert("Please, don't forget to fill in Supplier's Name");		document.form.supplier_name.focus();		return false;	}		if (document.form.specification.value == "") {		alert("Please, don't forget to fill in Detailes Specifications");		document.form.specification.focus();		return false;	}		if (document.form.requirements.value == "") {		alert("Please, don't forget to fill in Special Requirements");		document.form.requirements.focus();		return false;	}		if (document.form.quoted_price.value == "") {		alert("Please, don't forget to fill in Quoted Price for Item");		document.form.quoted_price.focus();		return false;	}		if (document.form.compromises.value == "") {		alert("Please, don't forget to fill in Possible Compromises");		document.form.compromises.focus();		return false;	}				return true;}