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<script LANGUAGE="JAVASCRIPT">
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t! ?; Z# S- e. Z<!-- hide this script tag's contents from old browsers
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% r, n8 }& ^$ ?function ClearForm(form){/ v9 `1 b7 Z- |' n+ B
! r6 j3 \$ Y$ j- G$ }" x form.weight.value = "";: n& l9 [3 G) B
+ P( ^6 K% N- u: H, N& p form.height.value = "";3 q, u# F6 A) h n$ V: @
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form.bmi.value = "";/ t' K7 B J' q
' g. o. f6 \+ k F3 ]3 ` form.my_comment.value = "";# t. D4 }' d. ^# l3 s4 P
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function bmi(weight, height) {
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1 d } H9 O( s$ ^- _ bmindx=weight/eval(height*height);! ^! r9 K; ?+ \- s ~
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return bmindx;
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e; u# l) |* L$ v5 Vfunction checkform(form) {! m6 }8 W8 b; W$ N! l# @% _8 [
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if (form.weight.value==null||form.weight.value.length==0
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+ o. ~' L4 R9 z+ C4 S- Q9 m) x2 e1 z || form.height.value==null||form.height.value.length==0){
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% _# C2 ?* S) {8 L. u alert("\nPlease complete the form first");+ }, D; t, `, X3 w
1 t. d1 |0 S) V7 p5 G: S& P return false;% j. H$ e# [* f6 {4 r2 u
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" w0 r2 m V3 [- t else if (parseFloat(form.height.value) <= 0||( K7 b+ b5 p# ]/ `- S, [! a
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parseFloat(form.height.value) >=500||, T/ Y- {& r' O7 h$ q
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parseFloat(form.weight.value) <= 0||6 C5 f/ }1 N# O" K' I
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parseFloat(form.weight.value) >=500){
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0 u) P& l+ r; K! _9 z alert("\nReally know what you're doing? \nPlease enter values again. \nWeight in kilos and \nheight in cm");
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3 @* h: G f4 V6 O ClearForm(form);
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2 k, Q6 J% b; h7 l6 @( O+ z return false;
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8 B& Q# w3 f8 P% U# F return true;! G- ]: W% k4 e, R& |
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function computeform(form) {1 O; ?, @+ p' u' `5 a z9 N
6 o% y! a/ ]6 o7 {% X2 N if (checkform(form)) {
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yourbmi=Math.round(bmi(form.weight.value, form.height.value/100));
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% {# X7 X9 b$ ?0 G7 } form.bmi.value=yourbmi;8 `' O7 O) B; D3 R' x9 F
+ m5 V! J6 l. z, T* Z if (yourbmi >30) {& z6 J/ U9 D0 C
: T3 ~9 J0 m) u9 P* J! U form.my_comment.value="不要在闹了!!!";* Q4 N4 C2 K* T$ F
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' ^7 z& W1 ?: N ` else if (yourbmi >28 && yourbmi <=30) {* E, M# P# P3 @+ N+ t. R1 B8 P$ @6 v
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form.my_comment.value="您是猪吗?";0 x" J. D0 k: H: S0 r8 U
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}
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) H* \ Q- u5 \% E else if (yourbmi >23 && yourbmi <=28) {
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form.my_comment.value="两头猪也没有你重吧?";- ] ]8 w0 d3 W6 U) {
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else if (yourbmi >21 && yourbmi <=23) {
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" X* o5 X' O* L# [5 n form.my_comment.value="您现在是偏胖,应该注意饮食!";
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}
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W4 a5 o% v; f" w# i) |' ^ else if (yourbmi >=19 && yourbmi <=21) {- B2 k1 |* J4 f0 {/ S0 G
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form.my_comment.value="哇!!!您太苗条了! 是标准身材";
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! n' h! K5 H6 b else if (yourbmi >=18 && yourbmi <19) {9 C, _0 G' z1 W! r; \5 t$ P2 j0 E
8 d( D2 j: S$ C) K0 N3 X form.my_comment.value="您是不是营养不良?????";
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else if (yourbmi >=17 && yourbmi <18) {
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form.my_comment.value="这个不是骨头吗????";: S6 z- a$ F/ d$ ]
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}
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6 q0 v t( q8 G3 d% p! d else if (yourbmi <17) {% C/ h4 b/ F8 Y. I2 D1 w" W* L
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form.my_comment.value="按照生物学来说这种生物是不能生存的";6 p/ y5 ^; k u, @
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}
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}
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T! R e( h8 J& ` return;
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// -- done hiding from old browsers -->& H3 F8 A: g2 O" w3 P3 J1 p7 B
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</script>) m- t7 v7 C g+ I! u. f
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<form NAME="BMI" method="POST">
! m, T I# E. O2 ~7 ]* g <table border="1">
2 ]* B9 g9 ?& k$ h: G: _ <tr>
( U$ \, K& I# a. ^ <td><font color="red"><div align="center"><center><p>体重</font> (kg)</td>8 ]; p) J, Q8 T7 |* x
<td align="center"><font color="red"><div align="center"><center><p>身高</font>(cm)</td>
. L6 S. T/ B! } <td align="center"><font color="blue"><div align="center"><center><p>健康值</font></td>
5 q- z1 i, o. l- v( O8 C <td align="center"><font color="blue"><div align="center"><center><p>电脑对您的评价</font></td>
% K/ s3 }# i3 n4 w* D( l </tr>
! A- h' g. U6 w& K5 ` <tr align="center">/ w* F i0 M. W, @. z
<td><input TYPE="TEXT" NAME="weight" SIZE="6" onFocus="this.form.weight.value=''"></td>3 L* m* p- [ d6 X' w# C- m! N
<td><input TYPE="TEXT" NAME="height" SIZE="6" onFocus="this.form.height.value=''"></td>2 g8 ~3 `: r4 [, b9 L
<td><input TYPE="TEXT" NAME="bmi" SIZE="5"></td>) G& l$ |& N' u3 f P+ S" ?
<td><input TYPE="TEXT" NAME="my_comment" size="40"></td>
/ d2 B; X/ t) B, g </tr>
3 O ]) J# P3 F7 Z8 @2 w% w, x </table>
; N: Q, ~3 A5 f0 l5 m, c% { <div align="center"><center><p><input TYPE="button" VALUE="确定"
2 v( B9 T1 @4 I- t/ }3 m4 N onClick="computeform(this.form)"> <input TYPE="reset" VALUE="取消"% i% c) A/ v+ T3 }" q/ q' l
onClick="ClearForm(this.form)"> </p>2 A# E% {/ h5 U' p
</center></div>+ Z4 s& c5 _3 C7 R
</form> |
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