function pvalchk()
{
	
	var i,temp,flagrate,flagdecimal;
	var numb = "0123456789 "; 
	var numob = "0123456789";
	var numb1=":0123456789";

	var lwr = "abcdefghijklmnopqrstuvwxyz ";
	var upr = "ABCDEFGHIJKLMNOPQRSTUVWXYZ ";
	var value_1 = lwr+upr;
	var value_2 = lwr+upr+numb;
	if(document.physicalfrm.name.value == "")
	{
			alert("Please enter name");
			document.physicalfrm.name.focus();
			return false;			
	}else if(document.physicalfrm.name.value != "")
				{	
					for (i=0; i<document.physicalfrm.name.value.length; i++) 
					{
						if (value_1.indexOf(document.physicalfrm.name.value.charAt(i)) == -1) 
						{
						alert("Please enter characters only.");
						document.physicalfrm.name.value="";
						document.physicalfrm.name.focus();
						return false;
						}
					}
				}	
	
	if(document.physicalfrm.address.value == "")
	{
			alert("Please enter address");
			document.physicalfrm.address.focus();
			return false;
	}
	if(document.physicalfrm.city.value == "")
	{
			alert("Please enter a suburb");
			document.physicalfrm.city.focus();
			return false;
	}else if(document.physicalfrm.city.value != "")
				{	
					for (i=0; i<document.physicalfrm.city.length; i++) 
					{
						if (value_1.indexOf(document.physicalfrm.city.charAt(i)) == -1) 
						{
						alert("Please enter characters only.");
						document.physicalfrm.city.value="";
						document.physicalfrm.city.focus();
						return false;
						}
					}
				}	
	
	/*if(document.physicalfrm.telhome.value == "")
	{
			alert("Please enter phone number");
			document.physicalfrm.telhome.focus();
			return false;
	}else if(document.physicalfrm.telhome.value != "")
				{	
					for (i=0; i<document.physicalfrm.telhome.value.length; i++) 
					{
						if (numb.indexOf(document.physicalfrm.telhome.value.charAt(i)) == -1) 
						{
						alert("Please enter numbers only.");
						document.physicalfrm.telhome.value="";
						document.physicalfrm.telhome.focus();
						return false;
						}
					}
				}*/
	
	 if(document.physicalfrm.mobile.value != "")
				{	
					for (i=0; i<document.physicalfrm.mobile.value.length; i++) 
					{
						if (numb.indexOf(document.physicalfrm.mobile.value.charAt(i)) == -1) 
						{
						alert("Please enter numbers only.");
						document.physicalfrm.mobile.value="";
						document.physicalfrm.mobile.focus();
						return false;
						}
					}
				}
		
	if(!isValidEmail(document.physicalfrm.email.value))
		  {
			 document.physicalfrm.email.focus();
			 return false;
		  }	
		   if(document.physicalfrm.quotation.checked == false)
				{	
				alert("Please check the terms and condition");
				document.physicalfrm.quotation.focus();
			return false;
				}
		  
		  
	/* if(document.physicalfrm.dd.value == "")
	{	
			alert("Please select preferred date");
			document.physicalfrm.dd.focus();
			return false;
	}
	if(document.physicalfrm.mm.value == "")
	{	
			alert("Please select preferred month");
			document.physicalfrm.mm.focus();
			return false;
	}
	if(document.physicalfrm.yyyy.value == "")
	{	
			alert("Please select preferred year");
			document.physicalfrm.yyyy.focus();
			return false;
	} */
	

}



	function isValidEmail(emailStr)
{
		if(emailStr=="")
		{
				alert("Please enter a valid email address");
				 return false;
				
		}
			/* The following pattern is used to check if the entered e-mail address
			   fits the user@domain format.  It also is used to separate the username
			   from the domain. */
			var emailPat=/^(.+)@(.+)$/
			/* The following string represents the pattern for matching all special
			   characters.  We don't want to allow special characters in the address. 
			   These characters include ( ) < > @ , ; : \ " . [ ]    */
			//var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
			var specialChars="\\(\\)<>@,`';:~!#$%^&*+=|{}?\\\\\\\"\\.\\[\\]"
			
			/* The following string represents the range of characters allowed in a 
			   username or domainname.  It really states which chars aren't allowed. */
			var validChars="\[^\\s" + specialChars + "\]"
			/* The following pattern applies if the "user" is a quoted string (in
			   which case, there are no rules about which characters are allowed
			   and which aren't; anything goes).  E.g. "sg cricket"@disney.com
			   is a legal e-mail address. */
			var quotedUser="(\"[^\"]*\")"
			/* The following pattern applies for domains that are IP addresses,
			   rather than symbolic names.  E.g. sg@[123.124.233.4] is a legal
			   e-mail address. NOTE: The square brackets are required. */
			var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
			/* The following string represents an atom (basically a series of
			   non-special characters.) */
			var atom=validChars + '+'
			/* The following string represents one word in the typical username.
			   For example, in sg.sg@somewhere.com, sg and sg are words.
			   Basically, a word is either an atom or quoted string. */
			var word="(" + atom + "|" + quotedUser + ")"
			// The following pattern describes the structure of the user
			var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
			/* The following pattern describes the structure of a normal symbolic
			   domain, as opposed to ipDomainPat, shown above. */
			var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")


			/* Finally, let's start trying to figure out if the supplied address is
			   valid. */

			/* Begin with the coarse pattern to simply break up user@domain into
			   different pieces that are easy to analyze. */
			var matchArray=emailStr.match(emailPat)
			if (matchArray==null) {
			  /* Too many/few @'s or something; basically, this address doesn't
			     even fit the general mould of a valid e-mail address. */
				alert("Email address seems incorrect (check @ and .'s)")
				return false
			}
			var user=matchArray[1]
			var domain=matchArray[2]

			// See if "user" is valid 
			if (user.match(userPat)==null) {
			    // user is not valid
			    alert("The username doesn't seem to be valid.")
			    return false
			}

			/* if the e-mail address is at an IP address (as opposed to a symbolic
			   host name) make sure the IP address is valid. */
			var IPArray=domain.match(ipDomainPat)
			if (IPArray!=null) {
			    // this is an IP address
				  for (var i=1;i<=4;i++) {
				    if (IPArray[i]>255) {
				        alert("Destination IP address is invalid!")
					return false
				    }
			    }
			    return true
			}

			// Domain is symbolic name
			var domainArray=domain.match(domainPat)
			if (domainArray==null) {
			alert("The domain name doesn't seem to be valid.")
			    return false
			}

			
			var atomPat=new RegExp(atom,"g")
			var domArr=domain.match(atomPat)
			var len=domArr.length
			if (domArr[domArr.length-1].length<2 || 
			    domArr[domArr.length-1].length>5) {
			   // the address must end in a two letter or three letter word.
			   alert("The address must end in a three-letter domain, or two letter country.")
			   return false
			}

			// Make sure there's a host name preceding the domain.
			if (len<2) {
			   var errStr="This address is missing a hostname!"
			   alert(errStr)
			   return false
			}

			// If we've gotten this far, everything's valid!
			return true;
}