function check_kelet(Reg)
{
	ok = 0
  	
  for (i=0; i<Reg.length; i++)
   {
    	ch = Reg.substring(i,i+1)
		///////////////////////////////////////
   		 if (ch == "à" || ch == "á" || ch == "â" || ch == "ã" || ch == "ä" || ch == "å" || ch == "æ" || ch == "ç" || ch == "è" || ch == "é" || ch == "ë" || ch == "ì" || ch == "î" || ch == "ð" || ch == "ñ" || ch == "ò" || ch == "ô" || ch == "ö" || ch == "÷" || ch == "ø" || ch == "ù" || ch == "ú" || ch == "ú" || ch == "ú" || ch == "ï" || ch == "í" || ch == "ó" || ch == "ê" || ch == "õ") 
		 {
     		 ok = 1
    	 }   	
		 else if (ch == "a" || ch == "b" || ch == "c" || ch == "d" || ch == "e" || ch == "f" || ch == "g" || ch == "h" || ch == "i" || ch == "j" || ch == "k" || ch == "l" || ch == "m" || ch == "n" || ch == "o" || ch == "p" || ch == "q" || ch == "r" || ch == "s" || ch == "t" || ch == "u" || ch == "v" || ch == "w" || ch == "x" || ch == "y" || ch == "z") 
		 {
     		 ok = 1
    	 } 
		  else if (ch == "A" || ch == "B" || ch == "C" || ch == "D" || ch == "E" || ch == "F" || ch == "G" || ch == "H" || ch == "I" || ch == "J" || ch == "K" || ch == "L" || ch == "M" || ch == "N" || ch == "O" || ch == "P" || ch == "Q" || ch == "R" || ch == "S" || ch == "T" || ch == "U" || ch == "V" || ch == "W" || ch == "X" || ch == "Y" || ch == "Z") 
		 {
     		 ok = 1
    	 }   	  	
		 else if (ch == "0" || ch == "1" || ch == "2" || ch == "3" || ch == "4" || ch == "5" || ch == "6" || ch == "7" || ch == "8" || ch == "9" || ch == "0") 
		 {
     		 ok = 1
    	 }  
		  else if (ch == "." || ch == "," || ch == "?" || ch == "@" || ch==" " || ch=="/") 
		 {
     		 ok = 1
    	 }   		 				
		 else
		 {
		 	 ok = 0
		 }
		
		 ///////////////////////////////////////
		 
		 if(ok == 0)
  		 {  
    		//alert("÷ìè ìà ú÷éï \n" + "       " + ch )   			
			str=""
				for (i=0; i<Reg.length-1; i++)
  				 {	
				 	str=str+Reg.substring(i,i+1)
				 }
				
			event.srcElement.value=str		
			event.srcElement.focus();	
   			return false;
 		 } 
	}
}	





 function openWindow_Popup(url, name) {
	            popupWin = window.open(url, name, 'resizable,width=350,height=350,scrollbars=yes,menubar=no,resizable=no,')
	            }
				
				
	            <!-- hide from JavaScript-challenged browsers
	            function openWindow(url, name) {
	            popupWin = window.open(url, name, 'resizable,width=500,height=550,scrollbars=yes,menubar=no,resizable=no,')
	            }
	           // done hiding -->