function validateshipdesign( form_valid )
{
if( form_valid.client_name.value == "" ) {
		alert("Please enter Client Name");
			form_valid.client_name.focus();
			return false;
		}

if( form_valid.contact_name.value == "" ) {
		alert("Please enter Contact name");
			form_valid.contact_name.focus();
			return false;
		}
		
else if
 		( form_valid.email_address.value == "" ) {
			alert("Please enter Email Address");
			form_valid.email_address.focus();
			return false;
		}


else if(!(/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(form_valid.email_address.value))) {
			alert("Please enter valid email address");
			form_valid.email_address.focus();
			return false;
		}

else if
 		( form_valid.phone.value == "" ) {
			alert("Please enter Telephone No.");
			form_valid.phone.focus();
			return false;
		}
else if
 		( form_valid.fax.value == "" ) {
			alert("Please enter Fax No.");
			form_valid.fax.focus();
			return false;
		}
else if
 		( form_valid.client_address.value == "" ) {
			alert("Please enter Client Address");
			form_valid.client_address.focus();
			return false;
		}
else if
 		( form_valid.delivery_address.value == "" ) {
			alert("Please enter Delivery Address");
			form_valid.delivery_address.focus();
			return false;
		}
else if
 		( form_valid.material_required.value == "" ) {
			alert("Please Select Material Required ");
			form_valid.material_required.focus();
			return false;
		}
else if
 		( form_valid.system_life.value == "" ) {
			alert("Please enter System Life");
			form_valid.system_life.focus();
			return false;
		}

else if
 		( form_valid.lbp.value == "" ) {
			alert("Please enter LBP");
			form_valid.lbp.focus();
			return false;
		}
else if
 		( form_valid.breadth.value == "" ) {
			alert("Please enter Breadth Moulded");
			form_valid.breadth.focus();
			return false;
		}
else if
 		( form_valid.draft.value == "" ) {
			alert("Please enter Max. Draft");
			form_valid.draft.focus();
			return false;
		}
else if
 		( form_valid.rudders.value == "" ) {
			alert("Please enter No. of Rudders");
			form_valid.rudders.focus();
			return false;
		}
else if
 		( form_valid.rudders_flaps.value == "" ) {
			alert("Please enter No. of Rudders Flaps");
			form_valid.rudders_flaps.focus();
			return false;
		}
else if
 		( form_valid.propellers.value == "" ) {
			alert("Please enter No. of Propellers");
			form_valid.propellers.focus();
			return false;
		}
else if
 		( form_valid.nozzles.value == "" ) {
			alert("Please enter No. of Nozzles");
			form_valid.nozzles.focus();
			return false;
		}
else if
 		( form_valid.azimuth.value == "" ) {
			alert("Please enter No. of Drop Down Azimuth");
			form_valid.azimuth.focus();
			return false;
		}
else if
 		( form_valid.stabaliser.value == "" ) {
			alert("Please enter No. of Stablisers");
			form_valid.stabaliser.focus();
			return false;
		}
else if
 		( form_valid.bow_thrust.value == "" ) {
			alert("Please enter No. of Bow Thrust Tunnels");
			form_valid.bow_thrust.focus();
			return false;
		}
else if
 		( form_valid.stern_thrust.value == "" ) {
			alert("Please enter No. of Stern Thrust Tunnels");
			form_valid.stern_thrust.focus();
			return false;
		}
else if
 		( form_valid.sea_chest.value == "" ) {
			alert("Please enter No. of Sea Chests");
			form_valid.sea_chest.focus();
			return false;
		}
else if
 		( form_valid.monpools.value == "" ) {
			alert("Please enter No. of Moonpools");
			form_valid.monpools.focus();
			return false;
		}

else if
 		( form_valid.design_required.value == "" ) {
			alert("Please Select Design Required.");
			form_valid.design_required.focus();
			return false;
		}
else if
 		( form_valid.survey_required.value == "" ) {
			alert("Please Select Survey Required.");
			form_valid.survey_required.focus();
			return false;
		}
else if
 		( form_valid.delivery_date.value == "" ) {
			alert("Please enter Delivery Date");
			form_valid.delivery_date.focus();
			return false;
		}		
}