var K
var BoruCinsi,Formul,AnmaCapi,AnmaBasinci


function boru_onchange()
{
  cazibe.hiz_d.value=""
  cazibe.dp.value=""
  cazibe.Hmax.value=""
  cazibe.Hmin.value=""
  if (cazibe.debi.value != "")
  {
     if (cazibe.isl_bas.value != "")
     {
     RS()
     }
   }
}

function bas_onchange()
{
var et
 AnmaCapi=document.cazibe.DN.options[document.cazibe.DN.selectedIndex].value
 AnmaBasinci=document.cazibe.PN.options[document.cazibe.PN.selectedIndex].value
 et=AnmaCapi*AnmaBasinci/(160+Math.round(AnmaBasinci*10)/10)
 et=Math.round(et*10)/10
 document.cazibe.etkal.value=et
 
 document.cazibe.iccap.value=AnmaCapi-2*et
  document.cazibe.hiz_d.value=""
  document.cazibe.dp.value=""
  document.cazibe.Hmax.value=""
  document.cazibe.Hmin.value=""
  if (cazibe.debi.value != "")
  {
     if (document.cazibe.isl_bas.value != "")
     {
     RS()
     }
   }


}



function RS()
{

var c
	  if (document.cazibe.boru_cinsi.options[0].selected)
	  {
	  K=377
	  }  
	  if (document.cazibe.boru_cinsi.options[1].selected)
	  {
	  K=33.3
	  }  
	  if (document.cazibe.boru_cinsi.options[2].selected)
	  {
	  K=0.5
	  }  
	  if (document.cazibe.boru_cinsi.options[3].selected)
	  {
	  K=1
	  }  
  
  document.cazibe.hiz_d.value=4*document.cazibe.debi.value/1000/(Math.PI*document.cazibe.iccap.value*document.cazibe.iccap.value/1000000)

  document.cazibe.hiz_d.value=Math.round(document.cazibe.hiz_d.value*100)/100
  c=9900/Math.sqrt(48.3+K*document.cazibe.iccap.value/document.cazibe.etkal.value)
  document.cazibe.dp.value=Math.round(document.cazibe.hiz_d.value*c/9.81*10)/10
  document.cazibe.Hmax.value=  Math.round(document.cazibe.isl_bas.value*10*10)/10+Math.round(document.cazibe.dp.value*10)/10
  document.cazibe.Hmin.value=  Math.round(document.cazibe.isl_bas.value*10*10)/10-Math.round(document.cazibe.dp.value*10)/10
  }

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