function checnum(as)
{
	var dd = as.value;
	
	if(isNaN(dd))
	{
		dd = dd.substring(0,(dd.length-1));
		as.value = dd;
	}		
}

function calsi()
{
	var z1 = document.new.aa.value;
	var z2 = document.new.bb.value;
	var p1 = document.new.cc.value;
	var p2 = document.new.dd.value;
	var v1 = document.new.ee.value;
	var v2 = document.new.ff.value;
	var p = document.new.gg.value;
	var g = document.new.hh.value;
	
	document.new.res.value = Math.round((parseFloat(z1) - parseFloat(z2) + parseFloat((p1-p2)/(p*g)) + parseFloat(((v1*v1)-(v2*v2))/(2*g)))*100)/100;
}
	
		


function color(test)
{

	for(var j=2; j<10; j++)
	{
		var myI=document.getElementsByTagName("input").item(j);
		//myI.setAttribute("style",ch);
		myI.style.backgroundColor=test;
	}
}


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