//  Show <DIV> in center of window
function showdeadcenterdiv(Xwidth,Yheight,divid) { 
// First, determine how much the visitor has scrolled
var scrolledX, scrolledY; 
if( self.pageYOffset ) { 
scrolledX = self.pageXOffset; 
scrolledY = self.pageYOffset; 
} else if( document.documentElement && document.documentElement.scrollTop ) { 
scrolledX = document.documentElement.scrollLeft; 
scrolledY = document.documentElement.scrollTop; 
} else if( document.body ) { 
scrolledX = document.body.scrollLeft; 
scrolledY = document.body.scrollTop; 
}

// Next, determine the coordinates of the center of browser's window

var centerX, centerY; 
if( self.innerHeight ) { 
centerX = self.innerWidth; 
centerY = self.innerHeight; 
} else if( document.documentElement && document.documentElement.clientHeight ) { 
centerX = document.documentElement.clientWidth; 
centerY = document.documentElement.clientHeight; 
} else if( document.body ) { 
centerX = document.body.clientWidth; 
centerY = document.body.clientHeight; 
}

// Xwidth is the width of the div, Yheight is the height of the 
// div passed as arguments to the function: 
var leftOffset = scrolledX + (centerX - Xwidth) / 2; 
var topOffset = scrolledY + (centerY - Yheight) / 2; 
// The initial width and height of the div can be set in the 
// style sheet with display:none; divid is passed as an argument to // the function 
var o=document.getElementById(divid); 
var r=o.style; 
r.position='absolute'; 
r.top = topOffset + 'px'; 
r.left = leftOffset + 'px'; 
// UsmAdd
r.width=Xwidth+"px";
r.height=Yheight+"px";
//end UsmAdd
r.display = "block"; 
} 
function CheckNumeric(El,Ev)
{
var k=Ev.keyCode;
var strString=El.value;
var strValidChars = "0123456789.-";
var strChar;
var blnResult = true;
   if (strString.length > 0) 
	{
	   //  test strString consists of valid characters listed above
	   var backString="";
	   for (i = 0; i < strString.length; i++)
	      {
	      strChar = strString.charAt(i);
	     	if (strValidChars.indexOf(strChar) == -1)
	        {
		         blnResult = false;
	        }
		else
		{
			backString=backString+strChar;
		}
	      }
	if (!blnResult)
	El.value=backString;
	}
}