<script language="JAVASCRIPT">
<!--
function ClearForm(form){
form.weight.value = "";
form.height.value = "";
form.bmi.value = "";
form.my_healthy.value = "";
}
function bmi(weight, height) {
bmindx=weight/eval(height*height);
return bmindx;
}
function ClearFormbmicheckform(form) {
if (form.weight.value==null||form.weight.value.length==0 || form.height.value==null||form.height.value.length==0){
alert("\n对不起！输入错误！");
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("\n这个机器可不是逞能的 \n快改正一下，再测试一遍");
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 >30) { // 进行则评价
form.my_healthy.value="哪有这种身材,身材太胖了!";
}
else if (yourbmi >28 && yourbmi <=30) {
form.my_healthy.value="你在不减肥就完蛋了！";
}
else if (yourbmi >25 && yourbmi <=28) {
form.my_healthy.value="您胖了?必须减肥了";
}
else if (yourbmi >23 && yourbmi <=25) {
form.my_healthy.value="有点偏胖,需要锻炼了";
}
else if (yourbmi >=21 && yourbmi <=23) {
form.my_healthy.value="你目前是标准身材！";
}
else if (yourbmi >=18 && yourbmi <21) {
form.my_healthy.value="朋友，很明显你的营养不良(^_^)";
}
else if (yourbmi >=17 && yourbmi <18) {
form.my_healthy.value="这个不是火柴杆吗?(^_^)";
}
else if (yourbmi <17) {
form.my_healthy.value="不能生存的";
}
}
return;
}
//-->
</script>
<form name="bmi" method="POST">
<div align="center">
<center>
<table border="1" bordercolor="#888888" cellspacing="1" bgcolor="#cccccc" width="450">
<tr>
<td width="65"><div align="center"><center><p>体重(kg)
</div>
</center></td>
<td align="center" width="64"><div align="center"><center><p>身高(cm)
</div>
</center></td>
<td align="center" width="55"><div align="center"><center><p>健康值
</div>
</center></td>
<td align="center" width="120"><div align="center"><center><p>计算机评价
</div>
</center></td>
<td align="center" width="65"><input TYPE="reset" VA
