// JavaScript Document
//this script contains validation for names,phone no
function namechk(tag)
{       
	var1=tag.value; // tval is textbox(element) checking for characters only
    s=var1.substr(var1.length-1,1); 	 
	m=s.charCodeAt(0);            
	if(!((m>=97 && m<=122 )||(m>=65 && m<=90)||(m==32) || isNaN(m)))
	{
		//alert("Invalid input");	
		ch=var1.substr(0,var1.length-1);		
		tag.value=ch;						
	}
}
function namevalchk(tag)
{       
	var1=tag.value; // tval is textbox(element) checking for characters only
    s=var1.substr(var1.length-1,1); 	 
	m=s.charCodeAt(0);            
	if(!((m>=97 && m<=122 )||(m>=65 && m<=90)||(m==32) || isNaN(m)))
	{		
		ch=var1.substr(0,var1.length-1);		
		tag.value=ch;						
	}
}
function numchk(tag)
{       
	var1=tag.value; // tval is textbox(element) checking for characters only
    s=var1.substr(var1.length-1,1); 	 
	m=s.charCodeAt(0);            
	if(!((m>=48 && m<=57 )||(m==32) || isNaN(m)))
	{
		//alert("Invalid input");	
		ch=var1.substr(0,var1.length-1);		
		tag.value=ch;						
	}
}
function numvalchk(tag)
{       
	var1=tag.value; // tval is textbox(element) checking for characters only
    s=var1.substr(var1.length-1,1); 	 
	m=s.charCodeAt(0);            
	if(!((m>=48 && m<=57 )||(m==32) || isNaN(m)))
	{		
		ch=var1.substr(0,var1.length-1);		
		tag.value=ch;						
	}
}
function namewithcommachk(tag)
{       
	var1=tag.value; // tval is textbox(element) checking for characters only
    s=var1.substr(var1.length-1,1); 	 
	m=s.charCodeAt(0);            
	if(!((m>=97 && m<=122 )||(m>=65 && m<=90)||(m==32) || isNaN(m) ||(m==44)))
	{
		//alert("Invalid input");	
		ch=var1.substr(0,var1.length-1);		
		tag.value=ch;						
	}
}
function namewithcommavalchk(tag)
{       
	var1=tag.value; // tval is textbox(element) checking for characters only
    s=var1.substr(var1.length-1,1); 	 
	m=s.charCodeAt(0);            
	if(!((m>=97 && m<=122 )||(m>=65 && m<=90)||(m==32) || isNaN(m) ||(m==44)))
	{		
		ch=var1.substr(0,var1.length-1);		
		tag.value=ch;						
	}
}
function mailchk(cmail)
{	
	 mailstr=cmail;	
    a = mailstr.indexOf(".");
	b = mailstr.indexOf("@");
	c = mailstr.indexOf(" ");
	d = mailstr.lastIndexOf(".");
	e = mailstr.length;
	if( (a == -1) || (b == -1) || (c != -1) || (d < b) || ( d == e - 1) || (b+1 == a) )
	{
	    alert("Please enter Valid Mail Id");	    
		return false;
	}	
	ok = "1234567890qwertyuiop[]asdfghjklzxcvbnm.@-_QWERTYUIOPASDFGHJKLZXCVBNM";
     e=mailstr;
	for(i=0; i < e.length ;i++)
	{
		 if(ok.indexOf(e.charAt(i))<0)
		{ 
		alert("Please enter Valid Mail Id");	   
		return (false);
		}	
	} 
}
function charonly(word)
{
   var wlen=word.length;
   for(var j=0;j < wlen;j++)
   {
	    /* if(!isNaN(word.charAt(j)))
			{*/
			m = word.charCodeAt(j);			
			if(!((m>=97 && m<=122 )||(m>=65 && m<=90)||(m==32)))
	        {
				/*alert("Please enter Valid Data");*/
				return false;
			}
   }
  return true;
}