function myvalidnumbercal(e)
{
var mykey = window.event ? e.keyCode : e.which;
		if ((mykey <= 47 || mykey > 57) && mykey !=13 && mykey !=0 && mykey != 8 && mykey != 46) 
			{
//			alert ("Enter number only");
		return false;
			}
return true;			
}

function checkNumber(Ttemp,objectname)
{ 
///Added by Prem to add percentage symbol
	var name="";
	var i;
	name=name+Ttemp.substring(i,i+1);
	
	if( !((Ttemp.substring(i,i+1) >= 0) && (Ttemp.substring(i,i+1) <= 9)) && !(Ttemp.substring(i,i+1)=='%'))
		{
		 no=name.length-1;
		}
		var t= Ttemp.length-1;
		for(i=0; i <= t; i++)
		{
		var iCharCode = Ttemp.charCodeAt(i);
		if(i==t && iCharCode==46)
		{
		Ttemp=Ttemp.replace(".", "")
		}
		}
		if(objectname=="loaninterest" && !(Ttemp.substring(Ttemp.length-1)=='%') )
		{
			if(Ttemp.value=='.' || Ttemp.indexOf('.%')>=0 )
			{
				document.loan.loaninterest.value = Ttemp+'00%';
			}
			else if(Ttemp!="." && Ttemp!="") 
			{
			document.loan.loaninterest.value = Ttemp + '%' ;
			}
		}
		
			
 	 return true;
}

function extractNumber(obj, decimalPlaces, allowNegative)
{
	var temp = obj.value;
	
	// avoid changing things if already formatted correctly
	var reg0Str = '[0-9]*';
	if (decimalPlaces > 0) {
		reg0Str += '\\.?[0-9]{0,' + decimalPlaces + '}';
	} else if (decimalPlaces < 0) {
		reg0Str += '\\.?[0-9]*';
	}
	reg0Str = allowNegative ? '^-?' + reg0Str : '^' + reg0Str;
	reg0Str = reg0Str + '$';
	var reg0 = new RegExp(reg0Str);
	if (reg0.test(temp)) return true;

	// first replace all non numbers
	var reg1Str = '[^0-9' + (decimalPlaces != 0 ? '.' : '') + (allowNegative ? '-' : '') + ']';
	var reg1 = new RegExp(reg1Str, 'g');
	temp = temp.replace(reg1, '');

	if (allowNegative) {
		// replace extra negative
		var hasNegative = temp.length > 0 && temp.charAt(0) == '-';
		var reg2 = /-/g;
		temp = temp.replace(reg2, '');
		if (hasNegative) temp = '-' + temp;
	}
	
	if (decimalPlaces != 0) {
		var reg3 = /\./g;
		var reg3Array = reg3.exec(temp);
		if (reg3Array != null) {
			// keep only first occurrence of .
			//  and the number of places specified by decimalPlaces or the entire string if decimalPlaces < 0
			var reg3Right = temp.substring(reg3Array.index + reg3Array[0].length);
			reg3Right = reg3Right.replace(reg3, '');
			reg3Right = decimalPlaces > 0 ? reg3Right.substring(0, decimalPlaces) : reg3Right;
			temp = temp.substring(0,reg3Array.index) + '.' + reg3Right;
		}
	}
	
	obj.value = temp;
}