Phiên bản đầy đủ: jsB@nk » Tính toán » Đo chỉ số phát triển
URL: https://www.javascriptbank.com/body-mass-index.html
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Phiên bản đầy đủ: jsB@nk » Tính toán » Đo chỉ số phát triển
URL: https://www.javascriptbank.com/body-mass-index.html
<SCRIPT LANGUAGE="JavaScript">// Author: Marat Rikelman ([email protected])<!-- Beginfunction mod(div,base) {return Math.round(div - (Math.floor(div/base)*base));}function calcBmi() {var w = document.bmi.weight.value * 1;var HeightFeetInt = document.bmi.htf.value * 1;var HeightInchesInt = document.bmi.hti.value * 1;HeightFeetConvert = HeightFeetInt * 12;h = HeightFeetConvert + HeightInchesInt;displaybmi = (Math.round((w * 703) / (h * h)));var rvalue = true;if ( (w <= 35) || (w >= 500) || (h <= 48) || (h >= 120) ) {alert ("Invalid data. Please check and re-enter!");rvalue = false;}if (rvalue) {if (HeightInchesInt > 11) {reminderinches = mod(HeightInchesInt,12);document.bmi.hti.value = reminderinches;document.bmi.htf.value = HeightFeetInt + ((HeightInchesInt - reminderinches)/12);document.bmi.answer.value = displaybmi;}if (displaybmi <19) document.bmi.comment.value = "Underweight";if (displaybmi >=19 && displaybmi <=25) document.bmi.comment.value = "Desirable";if (displaybmi >=26 && displaybmi <=29) document.bmi.comment.value = "prone to health risks";if (displaybmi >=30 && displaybmi <=40) document.bmi.comment.value = "Obese";if (displaybmi >40) document.bmi.comment.value = "Extremely obese";document.bmi.answer.value = displaybmi; }return rvalue;}// End --></script><!-- This script downloaded from www.JavaScriptBank.com Come to view and download over 2000+ free javascript at www.JavaScriptBank.com--><form name=bmi><table width=200 border=0 style="border: 1px solid silver;"><tr><td align=center><B>Weight:</B><input type=text name=weight SIZE=3 maxlength=3> lbs.</td></tr><tr><td align=center><B>Height:</B><input type=text name=htf size=1 maxlength=1> Ft. <input type=text name=hti size=2 maxlength=2> In.</td></tr><tr><td align=center><input type=button value="Calculate BMI" onclick="calcBmi()"> <hr></td></tr><tr><td><B>Body Mass Index</B><input type=text name=answer size=3></td></tr><tr><td>According to the Panel on Energy, Obesity, and Body Weight Standards published by American Journal of Clinical Nutrition, your category is:<br><input type=text name=comment size=25></td></tr></table></form><!-- This script downloaded from www.JavaScriptBank.com Come to view and download over 2000+ free javascript at www.JavaScriptBank.com-->