function isNum(args)
{
args = args.toString();

if (args.length == 0)
return false;

for (var i = 0;  i<args.length;  i++)
{
	if ((args.substring(i,i+1) < "0" || args.substring(i, i+1) > "9") && args.substring(i, i+1) != ".")
		{
		return false;
		}
}

return true;

}


function changes(var1,var2)
{
var lengt = document.cuboid.len.value;
var breadt = document.cuboid.bre.value;
var heigh = document.cuboid.hig.value;
var which = var2;

	if(isNum(lengt) && isNum(breadt) && isNum(heigh))
	{

		var res = lengt*breadt*heigh;
		document.cuboid.vol.value = res;

		var res1 = 2*((lengt*breadt)+(breadt*heigh)+(lengt*heigh));
		document.cuboid.sa.value = res1;

		var res2 = Math.sqrt((lengt*lengt)+(breadt*breadt)+(heigh*heigh));
		document.cuboid.dia.value = res2;
	}
	else 
	{
		if(!isNum(lengt) && lengt!="")
		{
			var aa = lengt.substring(0,lengt.length-1);
			document.cuboid.len.value = aa;
		}
		if(!isNum(breadt) && breadt!="")
		{
			aa = breadt.substring(0,breadt.length-1);
			document.cuboid.bre.value = aa;
		}
		if(!isNum(heigh) && heigh!="")
		{
			var aa = heigh.substring(0,heigh.length-1);
			document.cuboid.hig.value = aa;
		}
		//document.sqr.len.value = aa;
	}
}

function ubee(varr)
{
	var aa = varr.value;

	if(isNum(aa))
	{
	   document.cube.vol.value = aa*aa*aa;
	   document.cube.sa.value = 6*aa*aa;
	   document.cube.dia.value = Math.sqrt(3)*aa;

	}
	else
	{
		aa = aa.substring(0,aa.length-1);
		document.cube.len.value = aa;
	}
}

function cylin()
{
	var aa = document.cylinder.dia.value;
	var bb = document.cylinder.hig.value;

	if(isNum(aa) && isNum(bb))
	{
	   var ar=aa/2;		 
	   document.cylinder.rad.value = ar;
	   document.cylinder.vol.value = Math.PI*ar*ar*bb;
	   document.cylinder.sa.value = 2*Math.PI*ar*bb;
	   var cc = parseFloat(ar)+parseFloat(bb);
	  // alert(cc);
	   document.cylinder.tsa.value = 2*Math.PI*ar*cc;
	}
	else
	{
		if(!isNum(aa) && aa!="")
		{
			var aa1 = aa.substring(0,aa.length-1);
			document.cylinder.dia.value = aa1;
		}
		if(!isNum(bb) && bb!="")
		{
			aa1 = bb.substring(0,bb.length-1);
			document.cylinder.hig.value = aa1;
		}
	}
}

function con()
{
	var aa = document.cone.dia.value;
	var bb = document.cone.hig.value;

	if(isNum(aa) && isNum(bb))
	{
	   var ar=aa/2;		 
	   document.cone.rad.value = ar;
	   var slanth = Math.sqrt(ar*ar + bb*bb);
	   document.cone.shig.value = slanth;
	   document.cone.vol.value = (Math.PI*ar*ar*bb)/3;
	   document.cone.sa.value = Math.PI*ar*slanth;
	   var cc = parseFloat(ar)+parseFloat(slanth);
	  // alert(cc);
	   document.cone.tsa.value = Math.PI*ar*cc;
	}
	else
	{
		if(!isNum(aa) && aa!="")
		{
			var aa1 = aa.substring(0,aa.length-1);
			document.cone.dia.value = aa1;
		}
		if(!isNum(bb) && bb!="")
		{
			aa1 = bb.substring(0,bb.length-1);
			document.cone.hig.value = aa1;
		}
	}
}

//function cylin()
//{
//	var aa = document.cylinder.rad.value;
//	var bb = document.cylinder.hig.value;

//	if(isNum(aa) && isNum(bb))
//	{
//	   document.cylinder.vol.value = Math.PI*aa*aa*bb;
//	   document.cylinder.sa.value = 2*Math.PI*aa*bb;
//	   var cc = parseFloat(aa)+parseFloat(bb);
	  // alert(cc);
//	   document.cylinder.tsa.value = 2*Math.PI*aa*cc;
//	}
//	else
//	{
//		if(!isNum(aa) && aa!="")
//		{
//			var aa1 = aa.substring(0,aa.length-1);
//			document.cylinder.rad.value = aa1;
//		}
//		if(!isNum(bb) && bb!="")
//		{
//			aa1 = bb.substring(0,bb.length-1);
//			document.cuboid.hig.value = aa1;
//		}
//	}
//}

function sphe()
{
	var aa = document.sphere.dia.value;

	if(isNum(aa))
	{
	   var ar=aa/2;		 
	   document.sphere.rad.value = ar;
	   document.sphere.vol.value = (4/3)*(Math.PI*ar*ar*ar);
	   document.sphere.sa.value = 4*Math.PI*ar*ar;
	}
	else
	{
		if(!isNum(aa) && aa!="")
		{
			var aa1 = aa.substring(0,aa.length-1);
			document.sphere.rad.value = aa1;
		}
	}
}

function xsph()
{
	var aa = document.hemis.rad.value;

	if(isNum(aa))
	{
	   document.hemis.vol.value = (2/3)*(Math.PI*aa*aa*aa);
	   document.hemis.sa.value = 2*Math.PI*aa*aa;
	   document.hemis.tsa.value = 3*Math.PI*aa*aa;
	}
	else
	{
		if(!isNum(aa) && aa!="")
		{
			var aa1 = aa.substring(0,aa.length-1);
			document.hemis.rad.value = aa1;
		}
	}
}

function color(test)
{

//var ch ="background-color: "+test+"; width: 60px; height: 25px;";
//alert(ch);
	for(var j=1; j<15; j++)
	{
		if(j!=1 && j!=2 && j!=6 && j!=10 && j!=11)
		{
		var myI=document.getElementsByTagName("input").item(j);
		//myI.setAttribute("style",ch);
		myI.style.backgroundColor=test;
		}
	}
	for(var j=43; j<54; j++)
	{
		if(j!=42 && j!=47 && j!=50)
		{
		var myI=document.getElementsByTagName("input").item(j);
		//myI.setAttribute("style",ch);
		myI.style.backgroundColor=test;
		}
	}

//myI.setAttribute("style","background-color: #F70808; width: 60px; height: 25px;");
}


function color1(test)
{
var myI=document.getElementsByTagName("table").item(0);
//myI.setAttribute("style",ch);
myI.style.backgroundColor=test;
}