function chkEmpty(inObj,inTag){
	if(inObj.value==""){
		alert("اًتلبً"+inTag);
		inObj.focus();
		return false;
	}
	return true;
}
function isNumber(inValue){
	var sPos;
	if(inValue==null || inValue=="")
		return false;
	for(var i=0;i<inValue.length;i++){
		sPos=inValue.substring(i,i+1);
		if(sPos!="." && (sPos<"0" || sPos>"9"))
			return false;
	}
	return true;
}
var wndClew;
function clew(){
	var iLeft=(screen.width-700)/2;
	var iTop=(screen.height-400)/2;
	if(wndClew==null || wndClew.closed){
		wndClew=open("clew.htm","wndClew","left="+iLeft+" top=0 width=450 height=400 resizable=yes scrollbars=no menubar=no toolbar=no location=no status=no");
	}else{
		wndClew.location.href="clew.htm";
	}
	wndClew.focus();
}