function calculate5(){
// OMEGA
	var om4 = (document.decorative.amount.value * 39);
	var om5 = (document.decorative.amount.value * 44);
	var om6 = (document.decorative.amount.value * 49);
// V ARCH
	var va4 = (document.decorative.amount.value * 38);
	var va6 = (document.decorative.amount.value * 43);
	var va5 = (document.decorative.amount.value * 48);
// V ARCH WINDOW
	var vaw = (document.decorative.amount.value * 48);
// SQ HORIZONTAL
	var sh3 = (document.decorative.amount.value * 25);
	var sh4 = (document.decorative.amount.value * 28);
	var sh5 = (document.decorative.amount.value * 33);
	var sh6 = (document.decorative.amount.value * 37);
// ARCH HORIZONTAL
	var ah = (document.decorative.amount.value * 42);
// ARCH LATTICE TOP	
	var alt = (document.decorative.amount.value * 48);
// CONCAVE LATTICE TOP
	var clt = (document.decorative.amount.value * 49);
//  ##FORM FIELD VARIABLES
	var type = document.decorative.type.value;
	var size = document.decorative.size.value;
// IF STATEMENTS
	if (type == "om" && size == "3"){
	document.decorative.total.value = "this size N/A";
	}else if	(type == "om" && size == "4"){
	document.decorative.total.value = om4;
	}else if	(type == "om" && size == "5"){
	document.decorative.total.value = om5;
	}else if	(type == "om" && size == "6"){
	document.decorative.total.value = om6;
	}else if	(type == "va" && size == "3"){
	document.decorative.total.value = "this size N/A";
	}else if	(type == "va" && size == "4"){
	document.decorative.total.value = va4;
	}else if	(type == "va" && size == "5"){
	document.decorative.total.value = va5;
	}else if	(type == "va" && size == "6"){
	document.decorative.total.value = va6;
	}else if	(type == "sh" && size == "3"){
	document.decorative.total.value = sh3;
	}else if	(type == "sh" && size == "4"){
	document.decorative.total.value = sh4;
	}else if	(type == "sh" && size == "5"){
	document.decorative.total.value = sh5;
	}else if	(type == "sh" && size == "6"){
	document.decorative.total.value = sh6;
	}else if	(type == "ah" && size == "3"){
	document.decorative.total.value = "this size N/A";
	}else if	(type == "ah" && size == "4"){
	document.decorative.total.value = "this size N/A";
	}else if	(type == "ah" && size == "5"){
	document.decorative.total.value = "this size N/A";
	}else if	(type == "ah" && size == "6"){
	document.decorative.total.value = ah;
	}else if	(type == "alt" && size == "3"){
	document.decorative.total.value = "this size N/A";
	}else if	(type == "alt" && size == "4"){
	document.decorative.total.value = "this size N/A";
	}else if	(type == "alt" && size == "5"){
	document.decorative.total.value = "this size N/A";
	}else if	(type == "alt" && size == "6"){
	document.decorative.total.value = alt;
	}else if	(type == "clt" && size == "3"){
	document.decorative.total.value = "this size N/A";
	}else if	(type == "clt" && size == "4"){
	document.decorative.total.value = "this size N/A";
	}else if	(type == "clt" && size == "5"){
	document.decorative.total.value = "this size N/A";
	}else if	(type == "clt" && size == "6"){
	document.decorative.total.value = clt;
	}
}