function check(){
	     if(form1.FirstName.value.length<1){
	         alertValue("Please write FirstName",form1.FirstName);
	         return false;
	     }	     
	     if(form1.LastName.value.length<1){
	         alertValue("Please write LastName",form1.LastName);
	         return false;
	     }
	     if(form1.title.value.length<1){
	         alertValue("Please write title",form1.title);
	         return false;
	     }
	     if(form1.CompanyName.value.length<1){
	         alertValue("Please write CompanyName",form1.CompanyName);
	         return false;
	     }
	     if(form1.tele.value.length<1){
	         alertValue("Please write tele",form1.tele);
	         return false;
	     }
		 if(form1.Fax.value.length<1){
	         alertValue("Please write Fax Number",form1.Fax);
	         return false;
	     }

	      if(form1.email.value.length<1){
	         alertValue("Please write Email",form1.email);
	         return false;
	      }else{
	          if (!emailCheck(form1.email.value)){
	              return false;
	          
	          }
	      
	      
	      }
	   
	
	}
	function alertValue(value,name){
	   alert(value);
	   name.select();
	}
	function emailCheck (emailStr) {
		var emailPat=/^(.+)@(.+)$/
		var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
		var validChars="\[^\\s" + specialChars + "\]"
		var quotedUser="(\"[^\"]*\")"
		var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
		var atom=validChars + '+'
		var word="(" + atom + "|" + quotedUser + ")"
		var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
		var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
		
		
		var matchArray=emailStr.match(emailPat)
		if (matchArray==null) {
		
		        alert("Email FalseŁĄ")
		        form1.email.select();
		        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("Email invalid")
		     form1.email.select();
		    return false
		}
		
		
		var domainArray=domain.match(domainPat)
			if (domainArray==null) {
			       alert("Email invalid")
			        form1.email.select();
			       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>3) {
			    // the address must end in a two letter or three letter word.
			    alert("Email invalid")
			     form1.email.select();
			    return false
			}
			
			// Make sure there's a host name preceding the domain.
			if (len<2) {
			   var errStr="Email invalid"
			   alert(errStr)
			    form1.email.select();
			   return false
			}
			return true;
	}