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Jscript calculation within form

Posted on 2012-03-19
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Last Modified: 2012-03-20
Have a form with three types of room cleaning services, each with their own price per room. When the number of rooms is chosen for one or more of the types I want it to calculate the total price.
calc-roomclean.html
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Question by:gardena
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SANDY_SK earned 1000 total points
ID: 37736966
Use This script
<SCRIPT>
var basicRoomCost = 20;
var standardRoomcost = 30;
var executiveRoomCost = 40;

function updatesum(){
	var numBasic = document.getElementsByName('basicroom')[0].value;
	var numStandard = document.getElementsByName('standardroom')[0].value;
	var numExecutive = document.getElementsByName('executiveroom')[0].value;

	var total = (numBasic*basicRoomCost)+(numStandard*standardRoomcost)+(numExecutive*executiveRoomCost);

	document.getElementsByName('totalValue')[0].value = total;
}
</SCRIPT>

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calc-roomclean.html
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by:gardena
ID: 37740969
Thanks for your prompt reply, that works very well.
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