{

		function Calculate()
		{			
			var length = parseFloat(len.value);	
			var breadth = parseFloat(brt.value);	
			var num = parseInt(n.value);
			
			var area = 0.0, cost = 0.0, pcb = 0.0, setup = 0, total = 0.0;
			
			
			if(length <= 0)
				alert("Please enter a valid length");
				
			if(breadth <= 0)
				alert("Please enter a valid breadth");			
			
			if(num <= 0)
				alert("Please enter valid number of boards");	
			
			if(CT.checked == true)
			{
				pcb = 0.8;
				setup = 150;
			}
			else if(CTL.checked == true)
			{
				pcb = 1.6;
				setup = 275;
			}
			else
			{
				pcb = 2.4;
				setup = 400;
			}
				
				
			area = length * breadth;
			
			if(rcm.checked == true)	
				cost = area * pcb;
			else if(rinch.checked == true)
				cost = area * pcb * 6.45;
			

			total = (cost*num) + setup;
			
			area = area.toFixed(2);
			cost = cost.toFixed(2);
			total = total.toFixed(0);
			
			areaprint.value = area;
			costprint.value = cost;
			setupprint.value = setup;
			totcostprint.value = total;
		}
}