function isNum(arg)
{
	var args = arg;

	if (args == "" || args == null || args.length == 0)
	{
		return false;
	}

	args = args.toString();

	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 DaysInMonth(Y, M) {
    with (new Date(Y, M, 1, 12)) {
        setDate(0);
        return getDate();
    }
}

function checknum(vv)
{
	var aa=vv.value;
	if(isNum(aa)){
	
	}else{
		vv.value = aa.substring(0,(aa.length-1));
	}
}

function calage()
{
	var curday = document.cir.len11.value;
	var curmon = document.cir.len12.value;
	var curyear = document.cir.len13.value;
      var days = document.cir.len21.value;      


	if(curday == "" || curmon=="" || curyear=="" || days=="")
	{
		alert("please fill all the values and click go -");
	}	
	else
	{
		var yy = parseInt(curday)+parseInt(days);


		var curd = new Date(curyear,curmon-1,yy);
		var day = curd.getDate();
		var month = curd.getMonth()+1;
		var year = curd.getFullYear();

		document.cir.val.value = day+"-"+month+"-"+year;
		
            var res = curd.getDay();
		var res2 = curd.getMonth();

		var xx = new Array("SUNDAY","MONDAY","TUESDAY","WEDNESDAY","THURSDAY","FRIDAY","SATURDAY");
		document.cir.val1.value= xx[res];
	}
}

function color(test)
{

	for(var j=2; j<4; 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;
}