Java script - calculation of the quantity

Hi all

I have need to produce a java script to increase the option "size" of this page by the value of the quantity. So here's what I have so far, but all its bad. Can someone help me with this?

< script type = "text/javascript" >

function MM_goToURL() {//v3.0

var i, args is MM_goToURL.arguments; document. MM_returnValue = false;

for (i = 0; i <(args.length-1); I += 2) eval(args[i]+".location='"+args[i+1]+"'");

}

function Recalculate() {}

size = «»

Grand_Total = 0.00 + Number (getSelectedValueFromSelectList (document.product.size));

function getSelectedValueFromSelectList (element) {}

Return element.options [element.selectedIndex] .value;

}

document. Product.Grand_Total.Value = grand_total.toFixed (2);

}

function MM_openBrWindow (theURL, winName, features) {//v2.0

Window.Open (Theurl, winName, Features);

}

document. Form.Size.Value = (document. Form.Size.value);

document. Form.Grand_Total.Value = (document.form.size.value * document.form.quantity.value)

< /script >

http://www.milesmemorials.com/product-AF144a.html

Change option quantity from 0 to 1 as below:

Then it should work:

Tags: Dreamweaver

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