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Mitchman · Mar 4, 2009, 07:54 AM

I am trying to make a simples meun but I don't know how it get it to add up the taxes.
What I need it to do is when the user press the total up order button the appropriate subtotals, taxes and final total will be calculated and displayed.

This is what I came up with so far. I hope someone can help me.

<HTML>
<HEAD>
<TITLE>Take Out Menu Assignment</TITLE>

<script type="text/javascript">

// Start Total Up Order

function FtoC(FTemp)
{ document.form1.hb.value = (FTemp) * 2.99;
}

function CtoF(CTemp)
{ document.form1.total.value = (CTemp * FTemp) * 2.99;
}

function AtoB(ETemp)
{ document.form1.cb.value = (ETemp) * 3.99;
}

function CtoD(DTemp)
{ document.form1.cbtotal.value = (DTemp * ETemp) * 3.99;
}

function EtoF(FTemp)
{ document.form1.chb.value = (FTemp) * 4.99;
}

function GtoH(GTemp)
{ document.form1.chbtotal.value = (GTemp * FTemp) * 4.99;
}

function ItoJ(HTemp)
{ document.form1.ff.value = (HTemp) * 2.99;
}

function LtoK(ITemp)
{ document.form1.fftotal.value = (ITemp * HTemp) * 2.99;
}

function MtoN(JTemp)
{ document.form1.gravy.value = (JTemp) * 0.50;
}

function OtoP(KTemp)
{ document.form1.gtotal.value = (KTemp * JTemp) * 0.50;
}

function QtoR(LTemp)
{document.form1.chilli.value = (LTemp) * 1.99;
}

function StoT(MTemp)
{ document.form1.ctotal.value = (MTemp * LTemp) * 1.99;
}

function adder(){
var x=document.getElementById("tb1").value
var y=document.getElementById("tb2").value
var z=document.getElementById("tb4").value
var r=document.getElementById("tb5").value
var q=document.getElementById("tb6").value
var m=document.getElementById("tb7").value
var b=document.getElementById("tb3").value
var f=document.getElementById("tb8").value
var g=document.getElementById("tb9").value
var h=document.getElementById("tb10").value
document.getElementById("tb3").value=parseFloat(x) +parseFloat(y)+parseFloat(z)+parseFloat(r)+parseFl oat(q)+parseFloat(m)

document.getElementById("tb8").value=parseFloat(b) +parseFloat(f)
document.getElementById("tb9").value=parseFloat(b) +parseFloat(g)
document.getElementById("tb10").value=parseFloat(b )+parseFloat(f)+parseFloat(g)

}

// End Total Up Order

</script>

</HEAD>

<BODY>

<form name="form1">

<table width="90%" >
<tr>
<td>
<table>
<th>item</th><th>price</th><th>quantity</th><th>sub-total</th>
<tr align="center">
<td align="left">Hamberger</td>

<td><input type="text" value="$2.99" size="6" ></td>

<td><input type = "text" name="total" value="0" size="3" onChange="FtoC(this.value)"></td>

<td><input type="text" name="hb" value="0.00" id="tb1" size="6" onChange="CtoF(this.value)"></td>

</tr>
<tr align="center">
<td align="left">Cheeseburger</td>

<td><input type="text" value="$3.99" size="6" ></td>

<td><input type = "text" name="cbtotal" value="0" size="3" onChange="AtoB(this.value)"></td>

<td><input type="text" name="cb" value="0.00" id="tb2" size="6" onChange="CtoD(this.value)"></td>

</tr>
<tr align="center">
<td align="left">Chicken Burger</td>

<td><input type="text" value="$4.99" size="6" ></td>

<td><input type = "text" name="chbtotal" value="0" size="3" onChange="EtoF(this.value)"></td>

<td><input type="text" name="chb" value="0.00" id="tb4" size="6" onChange="GtoH(this.value)"></td>

</tr>
</table>
</td>
<td align="right">
<table>
<th>item</th><th>price</th><th>quantity</th><th>sub-total</th>
<tr align="center">
<td align="left">French Fries</td>

<td><input type="text" value="$2.99" size="6" ></td>

<td><input type = "text" name="fftotal" value="0" size="3" onChange="ItoJ(this.value)"></td>

<td><input type="text" name="ff" value="0.00" id="tb5" size="6" onChange="LtoK(this.value)"></td>

</tr>
<tr align="center">
<td align="left"><input type="checkbox"> gravy</td>

<td><input type="text" value="$0.50" size="6" ></td>

<td><input type = "text" name="gtotal" value="0" size="3" onChange="MtoN(this.value)"></td>

<td><input type="text" name="gravy" value="0.00" id="tb6" size="6" onChange="OtoP(this.value)"></td>
</tr>
<tr align="center">
<td align="left"><input type="checkbox"> chili</td>

<td><input type="text" value="$1.99" size="6" ></td>

<td><input type = "text" name="ctotal" value="0" size="3" onChange="QtoR(this.value)"></td>

<td><input type="text" name="chilli" id="tb7" value="0.00" size="6" onChange="StoT(this.value)"></td>
</tr>
</table>
</td>
</tr>
<tr>
<td colspan="2">
<table align="center">
<tr>
<td >subtotal</td>
<td><input type="text" id="tb3" size="6"></td>
</tr>
<tr>
<td >pst</td>
<td><input type="text" value="5.00" id="tb8" size="6"></td>
</tr>
<td >gst</td>
<td><input type="text" value="6.00" id="tb9" size="6"></td>
</tr>
<td >total</td>
<td><input type="text" value="0.00" name="" id=" id=" size=" size="></td>
</tr>
<tr>
<td colspan="></td>
</tr>
<tr>
<td colspan=">
<input type="button">
<input type="total up order" value="st" id="adder()">
</td>
</tr>
</table>
</td>
</tr>
</table>

</form>

</BODY>
</HTML>

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