function isApos(which) {
	if (/\'/.test(which)) {				
		return true;
		}
	}


function isEmpty(strInput) {
 	
		if((strInput=="")||(strInput==" "))
			{
				return true;
			}
 	}
	
 function isMail(info)
{
       var inputstr=info.toString();
       if ((inputstr.indexOf("@")==-1) || (inputstr.indexOf(".")==-1))
	       return false;
	   else
	       return true;
}	     
function isNum(strInput) {
	   var num=new Array("1","2","3","4","5","6","7","8","9","0","-");
	   var length=strInput.length;
	    for (var i=0;i<length;i++)
		 {
		   var flag=0;
		   for (var j=0;j<num.length;j++)
			{
		        if (strInput.charAt(i)==num[j])
				  {
				     flag++;
				  }
			}
			   if(flag==0)
			   return false;			
		}
		return true;
	}