// Opacity Onmouseover Images
function AlphaImage(who,state) {
	if(state=="on"){
		who.style.filter = 'alpha(opacity=50)';	
		who.style.opacity = 0.5;
	}
	else{
		who.style.filter = 'alpha(opacity=100)';
		who.style.opacity = 1;	
	}
}

// Popup Image
function PopupPic(sPicURL) {
 window.open("popup.html?"+sPicURL, "","resizable=1,HEIGHT=200,WIDTH=200");
}

// Check if the field is numeric
function IsNumeric(strString) {
	
	var strValidChars = "0123456789+.,-()";
	var strChar;
	var blnResult = true;

	//if (strString.length == 0) return false;
	
	for (i = 0; i < strString.length && blnResult == true; i++)
	  {
	  strChar = strString.charAt(i);
	  if (strValidChars.indexOf(strChar) == -1)
		 {
		 blnResult = false;
		 }
	  }
	return blnResult;
 }