<!-- 
function ClearForm(form)
{
    form.weight.value = "";
    form.height.value = "";
    form.bmi.value = "";
    form.my_comment.value = "";
}

function bmi(weight, height) 
{          bmindx=weight/eval(height*height);
          return bmindx;
}

function checkform(form) 
{
       if (form.weight.value==null||form.weight.value.length==0 || form.height.value==null||form.height.value.length==0)
	{            alert("\nManca cocche ccos ! Jamm bell !");
            return false;
       	}
       else if (parseFloat(form.height.value) <= 0||                parseFloat(form.height.value) >=500||                parseFloat(form.weight.value) <= 0||                parseFloat(form.weight.value) >=500){                alert("\nMa ch' staje facenn? \nScriv n'ata vota e nummariell..\nfà ampress!\n'o pes in KG  \naltezz in cm");                ClearForm(form);                return false;       }       return true;}function computeform(form) {       if (checkform(form)) {       yourbmi=Math.round(bmi(form.weight.value, form.height.value/100));       form.bmi.value=yourbmi;       if (yourbmi >40) {          form.my_comment.value="Si na palla 'e 'nzogn, miettete scuorno!     DIETA: 'e magnà sul'a Natale";       }       else if (yourbmi >30 && yourbmi <=40) {          form.my_comment.value="Ti si fatt comm' a nu puorc...   DIETA: magna 'na vota a semmana";       }       else if (yourbmi >27 && yourbmi <=30) {          form.my_comment.value="Chiattò ma addò vuò arrivà?    DIETA: miett'e caten 'o frigorifero";       }       else if (yourbmi >22 && yourbmi <=27) {          form.my_comment.value="Si propte nu panzarott!   DIETA: magn sul na vota 'o juorn e aiza 'o cul a copp 'a seggia!";       }       else if (yourbmi >=21 && yourbmi <=22) {          form.my_comment.value="Si propt nu figurino, sta bbene    DIETA: può scialà";       }       else if (yourbmi >=18 && yourbmi <21) {          form.my_comment.value="Te stai facenn comm 'na alice    DIETA: zeppole e panzarotti";       }       else if (yourbmi >=16 && yourbmi <18) {          form.my_comment.value="E fatt 'o fisico do' stuzzicarient!    DIETA: babbà, sfogliatelle e pastiera";       }       else if (yourbmi <16) {          form.my_comment.value="Ma si ancor vivo? O te staje avviann?    DIETA: casatiello, sasicce, supprssat";       }       }       return;} // --  -->