function rev5calc(radius, strut, A, B, C, D, E, F, G, H, I, struta, strutb, strutc, strutd, strute, strutf, strutg, struth, struti) {
	if(document.revform.strut.value == null || document.revform.strut.value <= 0){
		alert("Strut Length must be a positive value");
              return} 
      if(document.revform.choose.value == "A") {
	    radius = document.revform.strut.value/.19814743
		}
	  else if (document.revform.choose.value == "B") {
	    radius = document.revform.strut.value/.23179025
       }	
	  else if (document.revform.choose.value == "C") {
	    radius = document.revform.strut.value/.22568578
       }	
	  else if (document.revform.choose.value == "D") {
	    radius = document.revform.strut.value/.24724291
       }	
	  else if (document.revform.choose.value == "E") {
	    radius = document.revform.strut.value/.25516701
       }	   
	  else if (document.revform.choose.value == "F") {
	    radius = document.revform.strut.value/.24508578
       }	   
	  else if (document.revform.choose.value == "G") {
	    radius = document.revform.strut.value/.26159810
       }	   
	  else if (document.revform.choose.value == "H") {
	    radius = document.revform.strut.value/.23159760
       }	     
	  else  {
	    radius = document.revform.strut.value/.24534642
       }	 
		 
		document.result.struta.value = radius*.19814743
        document.result.struta.value = document.result.struta.value.substring(0,6)
        
        document.result.strutb.value = radius*.23179025
        document.result.strutb.value = document.result.strutb.value.substring(0,6)     
		
		document.result.strutc.value = radius*.22568578
        document.result.strutc.value = document.result.strutc.value.substring(0,6)    
		
		document.result.strutd.value = radius*.24724291
        document.result.strutd.value = document.result.strutd.value.substring(0,6)    
		
		document.result.strute.value = radius*.25516701
        document.result.strute.value = document.result.strute.value.substring(0,6)       
		
		document.result.strutf.value = radius*.24508578
        document.result.strutf.value = document.result.strutf.value.substring(0,6)    
	
		document.result.strutg.value = radius*.26159810
        document.result.strutg.value = document.result.strutg.value.substring(0,6)    
		
		document.result.struth.value = radius*.23159760
        document.result.struth.value = document.result.struth.value.substring(0,6)    
		
		document.result.struti.value = radius*.24534642
        document.result.struti.value = document.result.struti.value.substring(0,6)    
		
		document.result.radius.value = radius
		document.result.radius.value = document.result.radius.value.substring(0,7)
		
return   
}