function calculate_volume(form) {
	tmpdepth = parseFloat(document.forms["GLCalc"].Input_Depth.value);	
	tmpwidth = parseFloat(document.forms["GLCalc"].Input_Width.value);	
	tmplength = parseFloat(document.forms["GLCalc"].Input_Length.value);	
	var subCalc = ((tmpdepth/12) * (tmpwidth/12) * tmplength) * 7.25
	subCalc = Math.round(subCalc*Math.pow(10,1))/Math.pow(10,1);
	document.forms["GLCalc"].Output_Result.value = subCalc
}