Tu peso y tus biorritmos
Compatibilidad:
Ms Internet Explorer
,
Netscape
Este script calcula tu peso y tus biorritmos. Fíjate en el irónico comentario final.
[
Muestra el ejemplo práctico
]
el código para insertar en tu página
<!-- w w w . h t m l p o i n t . c o m --> <HTML> <HEAD> <!-- Código descargado gratuitamente de HTMLpoint, el sitio italiano del web publishing http://www.htmlpoint.com --> <TITLE>Ejemplos Javascript: ejemplo práctico </TITLE> </HEAD> <BODY bgcolor="white"> <FORM NAME="BMI" method=POST> <table border=1 columns=4 width=100%> <TR> <td Align="left" width=30% valign=top><DIV ALIGN=CENTER>Your Weight(kg)</DIV></TD> <td Align="left" width=30% valign=top><DIV ALIGN=CENTER>Your Height(cm)</DIV></TD> <td Align="left" width=30% valign=top><DIV ALIGN=CENTER>Your BMI</DIV></TD> <td Align="left"width=%10 valign=top><DIV ALIGN=CENTER>My Comment</DIV></TD> </TR> <TR> <TD><INPUT TYPE=TEXT NAME=weight SIZE=10 onFocus="this.form.weight.value=''"></TD> <TD><INPUT TYPE=TEXT NAME=height SIZE=10 onFocus="this.form.height.value=''"></TD> <TD><INPUT TYPE=TEXT NAME=bmi SIZE=8 ></TD> <TD><INPUT TYPE=TEXT NAME=my_comment SIZE=10 ></TD> </TABLE> <P> <INPUT TYPE="button" VALUE="Let's see" onClick="computeform(this.form)"> <INPUT TYPE="reset" VALUE="Reset" onClick="ClearForm(this.form)"> </FORM> </A> </center> <TABLE> </TABLE> <SCRIPT LANGUAGE="JAVASCRIPT"> <!-- hide this script tag's contents from old browsers 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("\nPlease complete the form first"); 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("\nReally know what you're doing? \nPlease enter values again. \nWeight in kilos and \nheight 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="You are grossly obese, consult your physician!"; } else if (yourbmi >30 && yourbmi <=40) { form.my_comment.value="Umm... You are obese, want some liposuction?"; } else if (yourbmi >27 && yourbmi <=30) { form.my_comment.value="You are very fat, do something before it's too late"; } else if (yourbmi >22 && yourbmi <=27) { form.my_comment.value="You are fat, need dieting and exercise"; } else if (yourbmi >=21 && yourbmi <=22) { form.my_comment.value="I envy you. Keep it up!!"; } else if (yourbmi >=18 && yourbmi <21) { form.my_comment.value="You are thin, eat more."; } else if (yourbmi >=16 && yourbmi <18) { form.my_comment.value="You are starving. Go Find some food!"; } else if (yourbmi <16) { form.my_comment.value="You're grossly undernourished, need hospitalization "; } } return; } // -- done hiding from old browsers --> </SCRIPT> </body> </html> <!-- w w w . h t m l p o i n t . c o m -->
[
Baja en un único archivo .zip,
las imágenes y demás archivos necesarios
para el funcionamiento de las demo de esta sección]
