function docheck(me,e,dec)
{if(me.value){me=me.value;};var key;var keychar;if(window.event)
key=window.event.keyCode;else if(e)
key=e.which;else
return true;keychar=String.fromCharCode(key);if((key==null)||(key==0)||(key==8)||(key==9)||(key==13)||(key==27))return true;else if((("0123456789").indexOf(keychar)>-1))return true;else if(dec&&(keychar=="."))
{if(me.indexOf(".")>=0)return false;return true;}
else if(keychar=="-")
{if(me.indexOf("-")==-1)return true;else return false;}
else
return false;}