// Formulaire NORME 1 & 2
function norme1(){
	fm = document.form_norme1;//Math.round(..)
	if((fm.o1.value!="")&&(fm.o2.value!="")){
	fm.o3.value = Math.round((fm.o1.value * fm.o2.value)*100)/100 ;
	fm.o4.value = Math.round((fm.o3.value * 10.764)*100)/100 ;
	}
	}
function norme2(){
	fm = document.form_norme1;//Math.round(..)
	if((fm.oo1.value!="")&&(fm.oo2.value!="")){
	fm.oo3.value = Math.round((fm.oo1.value * (fm.oo2.value/3.281))*100)/100 ;
	fm.oo4.value = Math.round((fm.oo3.value * 10.764)*100)/100 ;
	}
	}
	
function pageFocus_norme1(){
	document.form_norme1.Button.focus();}